Sample of 3,600 bird-related research articles published in 2001

M-R

Macrogeographic variation in song: A test of competition and habitat effects in blue tits. Doutrelant, Claire; Lambrechts, Marcel M. Ethology; June 2001; v.107, no.6, p.533-544.

Macronyssidae in wild bird nests in Mexico, including new synonymies, and the genus Pellonyssus in the New World (Acari:Mesostigmata). Radovsky, Frank J.; Estebanes-Gonzalez, Maria Luisa. Acta Zoologica Mexicana Nueva Serie; Abril 2001; no.82, p.19-28.

Magellanic Penguins Spheniscus magellanicus commuting through San Julian Bay; do current trends induce tidal tactics? Wilson, R. P.; Locca, R.; Scolaro, J. Alejandro; Laurenti, Sonia; Upton, Jorge; Gallelli, Hector; Frere, Esteban; Gandini, Patricia. Journal of Avian Biology; March 2001; v.32, no.1, p.83-89.

Magnetic compass orientation of European robins under 565 nm green light. Wiltschko, Wolfgang; Gesson, Marcus; Wiltschko, Roswitha. Naturwissenschaften; September 2001; v.88, no.9, p.387-390.

Maintaining Least Auklet, Aethia pusilla, at the Cincinnati Zoo & Botanical Garden: Hand-rearing protocol with field, development and behaviorial observations. Oehler, David A.; Schmid, Susan C.; Miller, Matthew P. Zoologische Garten; September 2001; v.71, no.5, p.316-334.

Maladaptive mate choice maintained by heterozygote advantage. Krueger, Oliver; Lindstrom, Jan; Amos, William. Evolution; June 2001; v.55, no.6, p.1207-1214.

Male badge size predicts dominance against females in House Sparrows. Liker, Andras; Barta, Zoltan. Condor; February 2001; v.103, no.1, p.151-157.

Male bill colour and competition in zebra finches. Etman, Eric J.; Lelieveld, Harm M.; ten Cate, Care.l Behavioural Processes; August 15 2001; v.55, no.2, p.119-124.

Male boobies expel eggs when paternity is in doubt. Osorio-Beristain, Marcela; Drummond, Hugh. Behavioral Ecology; Jan.-Feb. 2001; v.12, no.1, p.16-21.

Male characteristics and fertilisation success in bluethroats. Johnsen, Arild; Lifjeld, Jan T.; Andersson, Staffan; Ornborg, Jonas; Amundsen, Trond. Behaviour; December 2001; v.138, no.11-12, p.1371-1390.

Male colour type and lifetime breeding success in the Pied Flycatcher Ficedula hypoleuca. Ivankina, Elena V.; Grinkov, Vladimir G.; Kerimov, Anvar B. Acta Ornithologica (Warsaw); Summer 2001; v.36, no.1, p.91-96.

Male great tits eavesdrop on simulated male-to-male vocal interactions. Peake, T. M.; Terry, A. M. R.; McGregor, P. K.; Dabelsteen, T. Proceedings of the Royal Society Biological Sciences Series B; 7 June 2001; v.268, no.1472, p.1183-1187.

Male incubation and biparental care in Mountain Quail. Pope, Michael D.; Crawford, John A. Condor; November 2001; v.103, no.4, p.865-870.

Male mask size is correlated with mating success in the common yellowthroat. Thusius, Kevin J.; Peterson, Kara A.; Dunn, Peter O.; Whittingham, Linda A. Animal Behaviour; September 2001; v.62, no.3, p.435-446.

Male mate choice and female fecundity in zebra finches. Jones, Katherine M.; Monaghan, Pat; Nager, Ruedi G. Animal Behaviour; December 2001; v.62, no.6, p.1021-1026.

Male mate choice and female fecundity in zebra finches. Jones, Katherine M.; Monaghan, Pat; Nager, Ruedi G. Animal Behaviour; December 2001; v.62, no.6, p.1021-1026.

Male mate choice, sexual conflict and strategic allocation of copulations in a lekking bird. Saether, Stein Are; Fiske, Peder; Kalas, John Atle. Proceedings of the Royal Society Biological Sciences Series B; 22 October 2001; v.268, no.1481, p.2097-2102.

mammal. Cook, Jeremy E.; Podugolnikova, Tatyana A. Visual Neuroscience; March-April 2001; v.18, no.2, p.289-297.

Management for the great bustard (Otis tarda) in western Hungary. Farago, S.; Giczi, F.; Wurm, H. Game & Wildlife Science; June 2001; v.18, no.2, p.171-181.

Management of nonreleasable raptors for conservation education programs. Caudell, Joe N.; Riddleberger, Ken A., Jr. Journal of Raptor Research; March 2001; v.35, no.1, p.49-57.

Management opportunities and techniques for roof- and ground-nesting black skimmers. Coburn, Lara M.; Cobb, David T.; Gore, Jeffrey A. Wildlife Society Bulletin; Spring 2001; v.29, no.1, p.342-348.

Management plans for European migratory birds with an unfavourable conservation status. Boutin, J. M. Game & Wildlife Science; March 2001; v.18, no.1, p.3-6.

Managing birds and controlling aircraft in the Kennedy Airport-Jamaica Bay Wildlife Refuge complex: The need for hard data and soft opinions. Brown, Kevin M.; Erwin, Michael R.; Richmond, Milo E.; Buckley, P. A.; Tanacredi, John T.; Avrin, Dave. Environmental Management; August 2001; v.28, no.2, p.207-224.

Managing Egyptian geese on the croplands of the Agulhas Plain, Western Cape, South Africa. Mangnall, M. J.; Crowe, T. M. South African Journal of Wildlife Research; 2001; v.31, no.1-2, p.25-34.

Many-to-one matching with temporal and hedonic samples in pigeons. Grant, Douglas S.; Kelly, Ronald. Learning and Motivation; November 2001; v.32, no.4, p.477-498.

Mapping a forest mosaic: A comparison of vegetation and bird distributions using geographic boundary analysis. Hall, Kimberly R.; Maruca, Susan L. Plant Ecology; September 2001; v.156, no.1, p.105-120.

Mapping pre- and post-fledging foraging locations of thick-billed murres in the North Water polynya. Falk, Knud; Dall'Antonia, Luigi; Benvenutti, Silvano. Ecography; December 2001; v.24, no.6, p.625-632.

Marbled murrelet surveys: Site and annual variation, sampling effort, and statistical power. Smith, Winston P.; Harke, Vince L. Wildlife Society Bulletin; Summer 2001; v.29, no.2, p.568-577.

Marine oil pollution and beached bird surveys: The development of a sensitive monitoring instrument. Camphuysen, C. J.; Heubeck, M. Environmental Pollution; 2001; v.112, no.3, p.443-461.

Marsh Harrier Circus aeruginosus predation on artificial duck nests: A field experiment. Opermanis, Otars. Ornis Fennica; 2001; v.78, no.4, p.198-203.

Masking by harmonic complexes in birds: Behavioral thresholds and cochlear responses. Dooling, Robert J.; Dent, Micheal L.; Leek, Marjorie R.; Gleich, Otto. Hearing Research; February 2001; v.152, no.1-2, p.159-172.

Mass change during migration stopover: A comparison of species groups and sites. Dunn, Erica H. Journal of Field Ornithology; Summer 2001; v.72, no.3, p.419-432.

Mass mortality of short-tailed shearwaters in the south-eastern Bering Sea during summer 1997. Baduini, C. L.; Hyrenbach, K. D.; Coyle, K. O.; Pinchuk, A.; Mendenhall, V.; Hunt, G. L., Jr. Fisheries Oceanography; March 2001; v.10, no.1, p.117-130.

Mass-dependent predation and metabolic expenditure in wintering birds: Is there a trade-off between different forms of predation? Brodin, Anders. Animal Behaviour; November 2001; v.62, no.5, p.993-999.

Mate acquisition in the European blackbird and its implications for sexual strategies. Creighton, Emma. Ethology Ecology & Evolution; September 2001; v.13, no.3, p.247-260.

Mate guarding versus territorial defence in the Common Blackbird. Creighton, Emma. Ibis; April 2001; v.143, no.2, p.322-326.

Mate switching and copulation behaviour in King Penguins. Olsson, Olof; Bonnedahl, Jonas; Anker-Nilssen, Per. Journal of Avian Biology; June 2001; v.32, no.2, p.139-145.

Maternal androgens in black-headed gull (Larus ridibundus) eggs: Consequences for chick development. Eising, Corine M.; Eikenaar, Cas; Schwabl, Hubert; Groothuis, Ton G. G. Proceedings of the Royal Society Biological Sciences Series B; 22 April 2001; v.268, no.1469, p.839-846.

Maternal steroids and contaminants in common tern eggs: A mechanism of endocrine disruption? French, John B., Jr.; Nisbet, Ian C. T.; Schwabl, Hubert. Comparative Biochemistry and Physiology Part C Toxicology & Pharmacology; January 2001; v.128C, no.1, p.91-98.

Maternally derived androgens and antioxidants in bird eggs: Complementary but opposing effects? Royle, N. J.; Surai, P. F.; Hartley, I. R. Behavioral Ecology; July-Aug. 2001; v.12, no.4, p.381-385.

Mating behavior of the male greater Rhea. Codenotti, Thais L.; Alvarez, Fernando. Wilson Bulletin; March 2001; v.113, no.1, p.85-89.

Mating systems, sperm competition, and the evolution of sexual dimorphism in birds. Dunn, Peter O.; Whittingham, Linda A.; Pitcher, Trevor E. Evolution; January 2001; v.55, no.1, p.161-175.

Meadow pipits, red grouse and the habitat characteristics of managed grouse moors. Smith, A. A.; Redpath, S. M.; Campbell, S. T.; Thirgood, S. J. Journal of Applied Ecology; April 2001; v.38, no.2, p.390-400.

Measurement repeatability and the use of controls in PHA assays: A reply to Siva-Jothy & Ryder. Smits, J. E.; Bortolotti, G. R.; Tella, J. L. Functional Ecology; December 2001; v.15, no.6, p.814-817.

Measurements of Canada goose morphology: Sources of error and effects on classification of subspecies. Rasmussen, Paul W.; Wheeler, William E.; Moser, Timothy J.; Vine, Lawrence E.; Sullivan, Brian D.; Rusch, Donald H. Journal of Wildlife Management; October 2001; v.65, no.4, p.716-725.

Mechanical sounds and sexual dimorphism in the Crested Doradito. Bostwick, Kimberly S.; Zyskowski, Kristof. Condor; November 2001; v.103, no.4, p.861-865.

Mechanism of egg recognition in the great-tailed grackle (Quiscalus mexicanus). Peer, Brian D.; Sealy, Spencer G. Bird Behavior; 2001; v.14, no.2, p.71-73.

Mechanisms of capacitative calcium entry. Putney, James W., Jr.; Broad, Lisa M.; Braun, Franz-Josef; Lievremont, Jean-Philippe; Bird, Gary St. J. Journal of Cell Science; June 2001; v.114, no.12, p.2223-2229.

Melatonin decreases heat production in female broiler chickens. Zeman, M.; Buyse, J.; Herichova, I.; Decuypere, E. Acta Veterinaria Brno; March 2001; v.70, no.1, p.15-18.

Memory for empty time intervals in pigeons. Grant, Douglas S. Animal Learning & Behavior; November 2001; v.29, no.4, p.293-301.

Mercury concentrations in post-fledging Wood Storks. Bryan, A. L., Jr.; Jagoe, C. H.; Brant, H. A.; Gariboldi, J. C.; Masson, G. R. Waterbirds; August 2001; v.24, no.2, p.277-281.

Mercury in bar-tailed godwit (Limosa lapponica) and lesser knot (Calidris canutus): Spatially explicit information from non-breeding birds in New Zealand. Thompson, D. R. Bulletin of Environmental Contamination and Toxicology; June 2001; v.66, no.6, p.707-713.

Mercury in eggs and feathers of great egrets (Ardea albus) from the Florida Everglades. Rumbold, D. G.; Niemczyk, S. L.; Fink, L. E.; Chandrasekhar, T.; Harkanson, B.; Laine, K. A. Archives of Environmental Contamination and Toxicology; November 2001; v.41, no.4, p.501-507.

Mercury in feathers of Squacco Heron (Ardeola ralloides) chicks in relation to age, hatching order, growth, and sampling dates. Goutner, V.; Furness, R. W.; Papakostas, G. Environmental Pollution; 2001; v.111, no.1, p.107-115.

Mercury, methylmercury, and selenium concentrations in eggs of common loons (Gavia immer) from Canada. Scheuhammer, A. M.; Perrault, J. A.; Bond, D. E. Environmental Monitoring and Assessment; November 2001; v.72, no.1, p.79-94.

Merilaita, Sami; Lyytinen, Anne; Mappes, Johanna.

Metabolic power, mechanical power and efficiency during wind tunnel flight by the European starling Sturnus vulgaris. Ward, S.; Moeller, U.; Rayner, J. M. V.; Jackson, D. M.; Bilo, D.; Nachtigall, W.; Speakman, J. R. Journal of Experimental Biology; October 2001; v.204, no.19, p.3311-3322.

Metabolism of 2,4-dichlorophenoxyacetic acid in laying hens and lactating goats. Barnekow, D. E.; Hamburg, A. W.; Puvanesarajah, V.; Guo, M. Journal of Agricultural and Food Chemistry; January 2001; v.49, no.1, p.156-163.

Metal levels in feathers of cormorants, flamingos and gulls from the coast of Namibia in southern Africa. Burger, Joanna; Gochfeld, Michael. Environmental Monitoring and Assessment; June 2001; v.69, no.2, p.195-203.

Metallic elements and metal poisoning among white-tailed sea eagles from the Baltic South Coast. Falandysz, J.; Ichihashi, H.; Szymczyk, K.; Yamasaki, S.; Mizera, T. Marine Pollution Bulletin; November 2001; v.42, no.11, p.1190-1193.

Metals in feathers of sooty tern, white tern, gray-backed tern, and brown noddy from islands in the North Pacific. Burger, J.; Shukla, T.; Dixon, C.; Shukla, S.; McMahon, M. J.; Ramos, R.; Gochfeld, M. Environmental Monitoring and Assessment; September 2001; v.71, no.1, p.71-89.

Metals, boron, and selenium in Neosho madtom habitats in the Neosho River in Kansas, U.S.A. Allen, George T.; Blackford, Susan H.; Tabor, Vernon M.; Cringan, M. Steve. Environmental Monitoring and Assessment; January 2001; v.66, no.1, p.1-21.

Microclimate of tree cavity nests: Is it important for reproductive success in Northern Flickers? Wiebe, Karen L. Auk; April 2001; v.118, no.2, p.412-421.

Microfaunal primary succession on the volcanic island of Surtsey, Iceland. Frederiksen, Helle B.; Kraglund, Hans-Ole; Ekelund, Flemming. Polar Research; 2001; v.20, no.1, p.61-73.

Microgeographic variation, habitat effects and individual signature cues in calls of chiffchaffs Phylloscopus collybita canarensis. Naguib, Marc; Hammerschmidt, Kurt; Wirth, Jutta. Ethology; April 2001; v.107, no.4, p.341-355.

Microsatellite analysis of female mating behaviour in lek-breeding sage grouse. Semple, K.; Wayne, R. K.; Gibson, R. M. Molecular Ecology; August 2001; v.10, no.8, p.2043-2048.

Microsatellite diversity predicts recruitment of sibling great reed warblers. Hansson, Bengt; Bensch, Staffan; Hasselquist, Dennis; Akesson, Mikael. Proceedings of the Royal Society Biological Sciences Series B; 22 June 2001; v.268, no.1473, p.1287-1291.

Microsatellite identification of extrapair sires in a socially monogamous warbler. Webster, Michael S.; Chuang-Dobbs, Helen C.; Holmes, Richard T. Behavioral Ecology; July-Aug. 2001; v.12, no.4, p.439-446.

Microsatellite variation in the yellowhammer Emberiza citrinella: Population structure of a declining farmland bird. Lee, Patricia L. M.; Bradbury, Richard B.; Wilson, Jeremy D.; Flanagan, Nicola S.; Richardson, Lynne; Perkins, Allan J.; Krebs,John R. Molecular Ecology; July 2001; v.10, no.7, p.1633-1644.

Microscopic structure of the sperm storage tubules in the polygynandrous alpine accentor, Prunella collaris (Aves). Chiba, Akira; Nakamura, Masahiko. Acta Zoologica (Stockholm); October 2001; v.82, no.4, p.299-306.

Microscopic structure of the sperm storage tubules in the polygynandrous alpine accentor, Prunella collaris (Aves). Chiba, Akira; Nakamura, Masahiko. Acta Zoologica (Stockholm); October 2001; v.82, no.4, p.299-306.

Migrating birds stop over longer than usually thought: An improved capture-recapture analysis. Schaub, Michael; Pradel, Roger; Jenni, Lukas; Lebreton, Jean-Dominique. Ecology (Washington D C); March 2001; v.82, no.3, p.852-859.

Migrating songbirds tested in computer-controlled Emlen funnels use stellar cues for a time-independent compass. Mouritsen, Henrik; Larsen, Ole Naesbye. Journal of Experimental Biology; November 2001; v.204, no.22, p.3855-3865.

Migration along orthodromic sun compass routes by arctic birds. Alerstam, Thomas; Gudmundsson, Gudmundur A.; Green, Martin; Hedenstrom, Anders. Science (Washington D C); 12 January 2001; v.291, no.5502, p.300-303.

Migration and morphometrics of the Broad-billed Sandpiper Limicola falcinellus at Ottenby, southern Sweden, 1950-2000. Waldenstrom, Jonas; Lindstrom, Ake. Ornis Fennica; 2001; v.78, no.4, p.184-192.

Migration and survival of Black-headed Gulls Larus ridibundus ringed as chicks in Denmark. Heldbjerg, Henning. Dansk Ornitologisk Forenings Tidsskrift; 2001; v.95, no.1, p.28-35.

Migration of four Sylvia warblers through northern Senegal. Ottosson, Ulf; Rumsey, Stephen; Hjort, Christian. Ringing & Migration; November 2001; v.20, no.4, p.344-351.

Migration patterns and sex ratios of diving ducks wintering in Northern Ireland with specific reference to Lough Neagh. Evans, Darren M.; Day, Keith R. Ringing & Migration; November 2001; v.20, no.4, p.358-363.

Migration routes of four juvenile Imperial Eagles Aquila heliaca from the Baikal region of eastern Russia. Ueta, Mutsuyuki; Ryabtsev, Vitaly V. Bird Conservation International; June 2001; v.11, no.2, p.93-99.

Millipedes (Diplopoda) in birds' nests. Tajovsky, Karel; Mock, Andrej; Krumpal, Miroslav. European Journal of Soil Biology; October-December 2001; v.37, no.4, p.321-323.

Mimicry: An interface between psychology and evolution. Mallet, James. Proceedings of the National Academy of Sciences of the United States of America; July 31 2001; v.98, no.16, p.8928-8930.

Mink predation of a European starling nest. James, Ross D. Ontario Birds; April 2001; v.19, no.1, p.29-31.

Miocene and Pliocene birds from the Lee Creek Mine, North Carolina. Olson, Storrs L.; Rasmussen, Pamela C. Smithsonian Contributions to Paleobiology; 2001; no.90, p.233-365.

Mites (Acari), beetles (Coleoptera) and fleas (Siphonaptera) in the nests of great reed warbler (Acrocephalus arundinaceus) and reed warbler (A. scirpaceus). Kristofik, Jan; Masan, Peter; Sustek, Zbysek. Biologia (Bratislava); October 2001; v.56, no.5, p.525-536.

Mitochondrial control region structure and single site heteroplasmy in the razorbill (Alca torda; Aves). Moum, Truls; Bakke, Ingrid. Current Genetics; May 2001; v.39, no.3, p.198-203.

Mitochondrial perspective on the phylogenetic relationships of the Parula Wood-warblers. Lovette, Irby J.; Bermingham, Eldredge. Auk; January 2001; v.118, no.1, p.211-215.

Mixed-species bird flocks in dipterocarp forest of north-central Burma (Myanmar). King, David I.; Rappole, John H. Ibis; July 2001; v.143, no.3, p.380-390.

Mixed-species feeding aggregation of dolphins, large tunas and seabirds in the Azores. Clua, Eric; Grosvalet, Francois. Aquatic Living Resources; January-February 2001; v.14, no.1, p.11-18.

Modeling spatial variation in waterfowl band-recovery data. Royle, J. Andrew; Dubovsky, James A. Journal of Wildlife Management; October 2001; v.65, no.4, p.726-737.

Modeling spatial variation in waterfowl band-recovery data. Royle, J. Andrew; Dubovsky, James A. Journal of Wildlife Management; October 2001; v.65, no.4, p.726-737.

Modeling the ecological trap hypothesis: A habitat and demographic analysis for migrant songbirds. Donovan, Therese M.; Thompson, Frank R., III. Ecological Applications; June 2001; v.11, no.3, p.871-882.

Modeling the potential impact of climate change on the summer distribution of Georgia's nongame birds. Price, Jeff. Oriole; March-June 2001; v.66, no.1-2, p.1-8.

Modelling antipredator vigilance and flight response in group foragers when warning signals are ambiguous. Proctor, C. J.; Broom, M.; Ruxton, G. D. Journal of Theoretical Biology; 21 August 2001; v.211, no.4, p.409-417.

Modelling antipredator vigilance and flight response in group foragers when warning signals are ambiguous. Proctor, C. J.; Broom, M.; Ruxton, G. D. Journal of Theoretical Biology; 21 August 2001; v.211, no.4, p.409-417.

Modelling landscape distributions of large forest owls as applied to managing forests in north-east Victoria, Australia. Loyn, Richard H.; McNabb, Edward G.; Volodina, Lioudmila; Willig, Rolf. Biological Conservation; February 2001; v.97, no.3, p.361-376.

Modelling life history strategies with capture-recapture data: Evolutionary demography of the water skink Eulamprus tympanum. Blomberg, Simon P.; Shine, Richard. Austral Ecology; August 2001; v.26, no.4, p.349-359.

Modelling the effect of cormorant predation on stocked walleye. Jensen, A. L. Ecological Modelling; 15 November 2001; v.145, no.2-3, p.123-127.

Modelling the impact of fishery by-catches on albatross populations. Tuck, Geoffrey N.; Polacheck, Tom; Croxall, John P.; Weimerskirch, Henri. Journal of Applied Ecology; December 2001; v.38, no.6, p.1182-1196.

Modelling the population consequences of age- and sex-related differences in winter mortality in the oystercatcher, Haematopus ostralegus. dit Durell, S. E. A. Le V.; Goss-Custard, J. D.; Clarke, R. T. Oikos; October 2001; v.95, no.1, p.69-77.

Molecular "Cuckoo Clock" suggests listing of western Yellow-billed Cuckoos may be warranted. Pruett, Christin L.; Gibson, Daniel D.; Winker, Kevin. Wilson Bulletin; June 2001; v.113, no.2, p.228-231.

Molecular and cellular analysis of embryonic avian tongue development. Huang, Ruijin; Lang, Emily R.; Otto, William R.; Christ, Bodo; Patel, Ketan. Anatomy and Embryology; September 2001; v.204, no.3, p.179-187.

Molecular dynamics analysis of a second phosphate site in the hemoglobins of the seabird, south polar skua: Is there a site-site migratory mechanism along the central cavity? Riccio, Antonio; Tamburrini, Maurizio; Giardina, Bruno; di Prisco, Guido. Biophysical Journal; October 2001; v.81, no.4, p.1938-1946.

Molecular evidence for phylogenetic relationships among buntings and American sparrows (Emberizidae). Grapputo, Alessandro; Pilastro, Andrea; Baker, Allan J.; Marin, Guglielmo. Journal of Avian Biology; June 2001; v.32, no.2, p.95-101.

Molecular systematics and biogeography of Antillean thrashers, tremblers, and mockingbirds (Aves: Mimidae). Hunt, Jeffrey S.; Bermingham, Eldredge; Ricklefs, Robert E. Auk; January 2001; v.118, no.1, p.35-55.

Molecular systematics and evolutionary history of akalats (genus Sheppardia): A pre-Pleistocene radiation in a group of Africanforest birds. Roy, Michael S.; Sponer, Renate; Fjeldsa, Jon. Molecular Phylogenetics and Evolution; January 2001; v.18, no.1, p.74-83.

Molecular systematics and phylogeography of New Guinean logrunners (Orthonychidae). Joseph, Leo; Slikas, Beth; Alpers, Deryn; Schodde, Richard. Emu; 2001; v.101, no.4, p.273-280.

Molecular systematics of the thornbills, Acanthiza. Nicholls, James A.

Molt during spring migration: A comparison of four species of raptors. Gorney, Edna; Tov, Yoram Yom. Journal of Field Ornithology; Winter 2001; v.72, no.1, p.96-105.

Molt of Heermann's Gull and other gulls. Howell, Steve N. G. Ontario Birds; December 2001; v.19, no.3, p.136-138.

Molt of the Ivory Gull. Howell, Steve N. G. Waterbirds; December 2001; v.24, no.3, p.438-442.

Molts and plumages of Ontario's Heermann's Gull. Iron, Jean; Pittaway, Ron. Ontario Birds; August 2001; v.19, no.2, p.65-78.

Monitoring a marine ecosystem using responses of upper trophic level predators. Boyd, I. L.; Murray, A. W. A. Journal of Animal Ecology; September 2001; v.70, no.5, p.747-760.

Monitoring animal welfare on commercial broiler farms in Sweden. Algers, B.; Berg, C. Acta Agriculturae Scandinavica Section A Animal Science; 2001; no.Supplementum 30, p.88-92.

Monitoring feeding behaviour of brent geese Branta bernicla using position-sensitive radio transmitters. Hassall, Mark; Lane, Simon J.; Stock, Martin; Percival, Steve M.; Pohl, Barbara. Wildlife Biology; June 2001; v.7, no.2, p.77-86.

Monitoring nesting seabirds: Reply to a commentary by Ian C. T. Nisbet. Johnson, Catherine M.; Krohn, William B. Waterbirds; December 2001; v.24, no.3, p.461-466.

Monitoring non-natural mortality in the barn owl (Tyto alba), as an indicator of land use and social awareness in Spain. Fajardo, Inigo. Biological Conservation; February 2001; v.97, no.2, p.143-149.

Monitoring populations of Red-footed Boobies Sula sula and frigatebirds Fregata spp. breeding on Aldabra Atoll, Indian Ocean. Burger, Alan E.; Betts, Michael. Bulletin of the British Ornithologists' Club; December 2001; v.121, no.4, p.236-246.

Monitoring temporal and spatial trends in polychlorinated dibenzo-p-dioxins (PCDDs) and dibenzofurans (PCDFs) in eggs of great blue heron (Ardea herodias) on the coast of British Columbia, Canada, 1983-1998. Elliott, John E.; Harris, Megan L.; Wilson, Laurie K.; Whitehead, Philip E.; Norstrom, Ross J. Ambio; November 2001; v.30, no.7, p.416-428.

Monitoring the Atlantic Puffin Fratercula arctica, Common Guillemot Uria aalge and Black-legged Kittiwake Rissa tridactyla breeding populations on Hornoya, northeast Norway, 1980-2000. Barrett, Robert T. Fauna Norvegica; 2001; v.21, p.1-10.

Monitoring the feeding activity of nesting birds with an autonomous system: Case study of the endangered Wryneck Jynx torquilla. Freitag, Anne; Martinoli, Alcherio; Urzelai, Joseba. Bird Study; March 2001; v.48, no.1, p.102-109.

Monitoring the hydrology of Canadian prairie wetlands to detect the effects of climate change and land use changes. Conly, F. Malcolm; Van Der Kamp, Garth. Environmental Monitoring and Assessment; February-March 2001; v.67, no.1-2, p.195-215.

Monitoring, research and conservation of Ospreys Pandion haliaetus on Corsica, Mediterranean, France. Thibault, Jean-Claude; Bretagnolle, Vincent. Vogelwelt; 2001; v.122, no.3-4, p.173-178.

More information on shikra Accipter badius (Gmelin) feeding on shortnosed fruit bats Cynopterus sphinx Vahl. Zarri, Ashfaq Ahmed. Journal of the Bombay Natural History Society; April 2001; v.98, no.1, p.106-107.

Morphological and molecular characterization of Encephalitozoon hellem in hummingbirds. Snowden, Karen; Daft, Barbara; Nordhausen, Robert W. Avian Pathology; June 2001; v.30, no.3, p.251-255.

Morphological correlates of migratory distance and flight display in the avian genus Anthus. Voelker, G. Biological Journal of the Linnean Society; August 2001; v.73, no.4, p.425-435.

Morphological description of the developing ostrich embryo: A tool for embryonic age estimation. Gefen, Eran; Ar, Amos. Israel Journal of Zoology; 2001; v.47, no.1, p.87-97.

Morphological heritability in a hybrid bunting complex: Nesospiza at inaccessible island. Ryan, Peter G. Condor; August 2001; v.103, no.3, p.429-438.

Morphological heritability in a hybrid bunting complex: Nesospiza at inaccessible island. Ryan, Peter G. Condor; August 2001; v.103, no.3, p.429-438.

Morphology and foraging behaviour of Siberian Phylloscopus warblers. Forstmeier, Wolfgang; Kessler, Andre. Journal of Avian Biology; June 2001; v.32, no.2, p.127-138.

Morphology, moult and survival in three sympatric bowerbirds in Australian wet tropics upland rainforest. Frith, Clifford B.; Frith, Dawn W. Corella; September 2001; v.25, no.3, p.41-60.

Morphology, plumage, and habitat of the newly described Cinnabar Hawk-Owl from North Sulawesi, Indonesia. Lee, Robert J.; Riley, Jon. Wilson Bulletin; March 2001; v.113, no.1, p.17-22.

Morphology, plumage, and habitat of the newly described Cinnabar Hawk-Owl from North Sulawesi, Indonesia. Lee, Robert J.; Riley, Jon. Wilson Bulletin; March 2001; v.113, no.1, p.17-22.

Morshed, Muhammad G. Journal of Medical Entomology; July 2001; v.38, no.4, p.493-500.

Mortality in Muscovy ducks (Cairina moschata) and domestic geese (Anser anser var. domestica) associated with natural infection with a highly pathogenic avian influenza virus of H7N1 subtype. Capua, Ilaria; Mutinelli, Franco. Avian Pathology; April 2001; v.30, no.2, p.179-183.

Mortberg, Ulla M. Landscape Ecology; April 2001; v.16, no.3, p.193-203.

Mortlach's Eurasian invasion. Flack, Mary. Blue Jay; December 2001; v.59, no.4, p.208.

Moult and ageing of Storm Petrels Hydrobates pelagicus. Bolton, M.; Thomas, R. Ringing & Migration; May 2001; v.20, no.3, p.193-201.

Moult and moult migration of Greylag Geese Anser anser from a population in Scania, south Sweden. Nilsson, Leif; Kahlert, Johnny; Persson, Hakon. Bird Study; July 2001; v.48, no.2, p.129-138.

Moult in adult Royal Penguins, Eudyptes schlegeli. Hull, Cindy L.; Wilson, Jane; le Mar, Kirsten. Emu; 2001; v.101, no.2, p.173-176.

Mourning Dove numbers on different seral communities in the Chihuahuan Desert. Saiwana, Lewis; Holechek, Jerry L.; Valdez, Raul; Cardenas, Manuel. Western North American Naturalist; January 2001; v.61, no.1, p.50-56.

Mourning dove productivity in California during 1992-95: Was it sufficient to balance mortality? Miller, Michael R.; Stemler, Casey L.; Blankenship, Daniel S. Journal of Wildlife Management; April 2001; v.65, no.2, p.300-311.

Movement patterns of adult male ovenbirds during the post-fledging period in fragmented and forested boreal landscapes. Bayne, Erin M.; Hobson, Keith A. Condor; May 2001; v.103, no.2, p.343-351.

Movement patterns of European Reed Warblers Acrocephalus scirpaceus and Sedge Warblers A. schoenobaenus before and during autumn migration. Chernetsov, Nikita; Titov, Nikolay. Ardea; 2001; v.89, no.3, p.509-515.

Movements and mortality of Ferruginous Hawks banded in Montana. Harmata, Alan R.; Restani, Marco; Montopoli, George J.; Zelenak, James R.; Ensign, John T.; Harmata, Peter J. Journal of Field Ornithology; Summer 2001; v.72, no.3, p.389-398.

Movements and survival of Lark Bunting fledglings. Yackel Adams, Amy A.; Skagen, Susan K.; Adams, Rod D. Condor; August 2001; v.103, no.3, p.643-647.

Movements, habitat use, and survival of nonbreeding piping plovers. Drake, Katherine R.; Thompson, Jonathan E.; Drake, Kiel L.; Zonick, Curt. Condor; May 2001; v.103, no.2, p.259-267.

MtDNA sequences support monophyly of Hemispingus tanagers. Garcia-Moreno, J.; Ohlson, J.; Fjeldsa, J. Molecular Phylogenetics and Evolution; December 2001; v.21, no.3, p.424-435.

Multiple benefits of gregariousness cover detectability costs in aposematic aggregations. Riipi, Marianna; Alatalo, Rauno V.; Lindstrom, Leena; Mappes, Johanna. Nature (London); 4 October 2001; v.413, no.6855, p.512-514.

Multiple ecological interactions: Nectar robbers and hummingbirds in a highland forest in Mexico. del Coro Arizmendi, Maria. Canadian Journal of Zoology; June 2001; v.79, no.6, p.997-1006.

Multiscale assessment of patterns of avian species richness. Rahbek, Carsten; Graves, Gary R. Proceedings of the National Academy of Sciences of the United States of America; April 10 2001; v.98, no.8,p.4534-4539.

Multivariate perspectives on patch use by masked bobwhites. Guthery, Fred S.; King, Nina M.; Nolte, Kenneth R.; Kuvlesky, William P., Jr.; DeStefano, Stephen; Gall, Sally A.; Silvy, Nova J. Journal of Wildlife Management; January 2001; v.65, no.1, p.118-124.

Multivariate statistical analysis of songs of the male Common Blackbird (Turdus merula): An example from western Victoria,

Muscle force and stress during running in dogs and wild turkeys. Roberts, Thomas J. Bulletin of the Museum of Comparative Zoology; 10 October 2001; v.156, no.1, p.283-295.

Museum egg collections as stores of long-term phenological data. Scharlemann, Jorn P. W. International Journal of Biometeorology; November 2001; v.45, no.4, p.208-211.

Mute swan grazing on winter crops: Estimation of yield loss in oilseed rape and wheat. Parrott, Dave; McKay, Helen V. Crop Protection; December 2001; v.20, no.10, p.913-919.

Mute swan grazing on winter crops: Estimation of yield loss in oilseed rape and wheat. Parrott, Dave; McKay, Helen V. Crop Protection; December 2001; v.20, no.10, p.913-919.

MVA: A cuckoo in the vaccine nest? Stittelaar, Koert J.; Osterhaus, Albert D. M. E. Vaccine; 14 June 2001; v.19, no.27, p.v-vi.

Mycoplasma gallisepticum in house finches (Carpodacus mexicanus) and other wild birds associated with poultry production facilities. Luttrell, M. P.; Stallknecht, D. E.; Kleven, S. H.; Kavanaugh, D. M.; Corn, J. L.; Fischer, J. R. Avian Diseases; April-June 2001; v.45, no.2, p.321-329.

Mycoplasmas and respiratory disease in pheasants and partridges. Bradbury, Janet M.; Yavari, Christine A.; Dare, Cynthia M. Avian Pathology; August 2001; v.30, no.4, p.391-396.

Mycoplasmosis in captive crows and robins from Minnesota. Wellehan, James F. X.; Calsamiglia, Maria; Ley, David H.; Zens, Mark S.; Amonsin, Alongkorn; Kapur, Vivek. Journal of Wildlife Diseases; July 2001; v.37, no.3, p.547-555.

Mycoplasmosis in evening and pine grosbeaks with conjunctivitis in Quebec. Mikaelian, Igor; Ley, David H.; Claveau, Raynald; Lemieux, Michel; Berube, Jean-Paul. Journal of Wildlife Diseases; October 2001; v.37, no.4, p.826-830.

Mycoplasmosis in evening and pine grosbeaks with conjunctivitis in Quebec. Mikaelian, Igor; Ley, David H.; Claveau, Raynald; Lemieux, Michel; Berube, Jean-Paul. Journal of Wildlife Diseases; October 2001; v.37, no.4, p.826-830.

Natal homing in a marine fish metapopulation. Thorrold, Simon R.; Latkoczy, Christopher; Swart, Peter K.; Jones, Cynthia M. Science (Washington D C); 12 January 2001; v.291, no.5502, p.297-299.

National Park, south-west Queensland. McDougall, Andrew; Timms, Brian Corella; June 2001; v.25, no.2, p.25-31.

Natural and human-mediated factors in the recovery and subsequent expansion of the purple swamphen Porphyrio porphyrio L. (Rallidae) in the Iberian Peninsula. Sanchez-Lafuente, Alfonso M.; Valera, Francisco; Godino, Alfonso; Muela, Francisco. Biodiversity and Conservation; June 2001; v.10, no.6, p.851-867.

Natural history and conservation of Brazilian Merganser Mergus octosetaceus at Serra da Canastra National Park, Minas Gerais, Brazil. Silveira, Luis Fabio; Bartmann, Wolf Dieter Bird Conservation International; December 2001; v.11, no.4, p.287-300.

Natural selection on the genetical component of variance in body condition in a wild bird population. Merila, J.; Kruuk, L. E. B.; Sheldon, B. C. Journal of Evolutionary Biology; November 2001; v.14, no.6, p.918-929.

Near-field visual acuity in Japanese jungle crows (Corvus macrorhynchos). Yamamoto, Keiko; Furuya, Izumi; Watanabe, Shigeru. Physiology & Behavior; January 2001; v.72, no.1-2, p.283-286.

Necrophilic behaviour, corpses as nuclei of resting flock formation, and road-kills of Sand Martins Riparia riparia. Dale, Svein. Ardea; 2001; v.89, no.3, p.545-547.

Necropsy findings and environmental contaminants in common loons from New York. Stone, Ward B.; Okoniewski, Joseph C. Journal of Wildlife Diseases; January 2001; v.37, no.1, p.178-184.

Nectar consumption of warblers after long-distance flights during spring migration. Schwilch, Regine; Mantovani, Rosita; Spina, Fernando; Jenni, Lukas. Ibis; January 2001; v.143, no.1, p.24-32.

Nectar features in Esterhazya macrodonta, a hummingbird-pollinated Scrophulariaceae in Southeastern Brazil. Freitas, Leandro; Sazima, Marlies. Journal of Plant Research; June 2001; v.114, no.1114, p.187-191.

Nectar sugar composition in relation to pollination syndromes in Sinningieae (Gesneriaceae). Perret, Mathieu; Chautems, Alain; Spichiger, Rodolphe; Peixoto, Mauro; Savolainen, Vincent. Annals of Botany (London); February 2001; v.87, no.2, p.267-273.

Nectar 'theft' by hummingbird flower mites and its consequences for seed set in Moussonia deppeana. Lara, C.; Ornelas, J. F. Functional Ecology; February 2001; v.15, no.1, p.78-84.

Neighbour recognition by resident males in the banded wren, Thryothorus pleurostictus, a tropical songbird with high song type sharing. Molles, Laura E.; Vehrencamp, Sandra L. Animal Behaviour; January 2001; v.61, no.1, p.119-127.

Nest attendance and foraging movements of northern fulmars rearing chicks at Bjornoya Barents Sea. Weimerskirch, H.; Chastel, O.; Cherel, Y.; Henden, J.-A.; Tveraa, T. Polar Biology; February 2001; v.24, no.2, p.83-88.

Nest attendants in parakeet auklets. Grimes, Julie; Logan, Cheryl. Zoo Biology; 2001; v.20, no.4, p.271-277.

Nest box drama: House Wren vs. House Sparrow. Nelson, Garth. Blue Jay; June 2001; v.59, no.2, p.78-82.

Nest defence behaviour of the Eurasian Kestrel (Falco tinnunculus) against human predators. Carrillo, Jose; Aparicio, Jose Miguel. Ethology; October 2001; v.107, no.10, p.865-875.

Nest defense as parental care in the Northern Hobby (Falco subbuteo). Sergio, Fabrizio; Bogliani, Giuseppe. Auk; October 2001; v.118, no.4, p.1047-1052.

Nest desertion and apparent nest protection behavior by Bell's Vireos in response to cowbird parasitism. Budnik, Joel M.; Burhans, Dirk E.; Ryan, Mark R.; Thompson, Frank R., III. Condor; August 2001; v.103, no.3, p.639-643.

Nest desertion by Field Sparrows and its possible influence on the evolution of cowbird behavior. Strausberger, Bill M.; Burhans, Dirk E. Auk; July 2001; v.118, no.3, p.770-776.

Nest desertion by Field Sparrows and its possible influence on the evolution of cowbird behavior. Strausberger, Bill M.; Burhans, Dirk E. Auk; July 2001; v.118, no.3, p.770-776.

Nest materials of skuas (Catharacta spp.) and kelp gulls (Larus dominicanus) at Cierva Point, Antarctic Peninsula. Quintana, Ruben D.; Cirelli, Veronica; Benitez, Oscar. Notornis; December 2001; v.48, no.4, p.235-241.

Nest poaching in neotropical parrots. Wright, Timothy F.; Toft, Catherine A.; Enkerlin-Hoeflich, Ernesto; Gonzalez-Elizondo, Jaime; Albornoz, Mariana; Rodriguez-Ferraro, Adriana; Rojas-Suarez, Franklin; Sanz, Virginia; Trujillo, Ana; Beissinger, Steven R.; Berovides A., Vicente; Galvez A., Xiomara; Brice, Ann T.; Joyner, Kim; Eberhard, Jessica; Gilardi, James; Koenig, S. E.; Stoleson, Scott; Martuscelli, Paulo; Meyers, J. Michael; Renton, Katherine; Rodriguez, Angelica M.; Sosa-Asanza, Ana C.; Vilella, Francisco J.; Wiley, James W. Conservation Biology; June 2001; v.15, no.3, p.710-720.

Nest predation and neotropical migrant songbirds: Piecing together the fragments. Heske, Edward J.; Robinson, Scott K.; Brawn, Jeffrey D. Wildlife Society Bulletin; Spring 2001; v.29, no.1, p.52-61.

Nest site characteristics and habitat preferences of the Kestrel (Falco tinnunculus) in a Mediterranean urban area. Salvati, Luca. Vogelwarte; Dezember 2001; v.41, no.2, p.133-138.

Nest site selection by Brown-hooded Gull (Larus maculipennis), Trudeau's Tern (Sterna trudeaui) and White-faced Ibis (Plegadischihi) in a south Chilean tule marsh. Guicking, Daniela; Mickstein, Susanne; Becker, Peter H.; Schlatter, Roberto. Ornitologia Neotropical; 23 November 2001; v.12, no.4, p.285-296.

Nest site selection by Elf Owls in the Sonoran Desert. Hardy, Paul C.; Morrison, Michael L. Wilson Bulletin; March 2001; v.113, no.1, p.23-32.

Nest site selection by Mountain Plovers (Charadius montanus) in a shrub-steppe habitat. Ellison Manning, Ann E.; White, Clayton M. Western North American Naturalist; April 2001; v.61, no.2, p.229-235.

Nest site selection by the Indian sarus crane in the paddy crop agroecosystem. Borad, C. K.; Mukherjee, Aeshita; Parasharya, B. M. Biological Conservation; March 2001; v.98, no.1, p.89-96.

Nest sites of the newly established Canada Goose population in West Greenland. Kristiansen, Jens Nyeland; Jarrett, Nigel S. Dansk Ornitologisk Forenings Tidsskrift; 2001; v.95, no.4, p.173-176.

Nest size affects clutch size and the start of incubation in magpies: An experimental study. Soler, Juan Jose; de Neve, Liesbeth; Martinez, Juan Gabriel; Soler, Manuel. Behavioral Ecology; May-June 2001; v.12, no.3, p.301-307.

Nest success is not an adequate comparative estimate of avian reproduction. Thompson, Bruce C.; Knadle, Gregory E.; Brubaker, Donald L.; Brubaker, Kathleen S. Journal of Field Ornithology; Autumn 2001; v.72, no.4, p.527-536.

Nest success is not an adequate comparative estimate of avian reproduction. Thompson, Bruce C.; Knadle, Gregory E.; Brubaker, Donald L.; Brubaker, Kathleen S. Journal of Field Ornithology; Autumn 2001; v.72, no.4, p.527-536.

Nest success of ducks on rotational and season-long grazing systems in Saskatchewan. Ignatiuk, Jordan B.; Duncan, David C. Wildlife Society Bulletin; Spring 2001; v.29, no.1, p.211-217.

Nest-attenders in the pied flycatcher (Ficedula hypoleuca) during nestling rearing: A possible case of prospective resource exploration. Ottosson, Ulf; Backman, Johan; Smith, Henrik G. Auk; October 2001; v.118, no.4, p.1069-1072.

Nestbox provisioning in a rural population of Eurasian Kestrels: Breeding performance, nest predation and parasitism. Fargallo, Juan A.; Blanco, Guillermo; Potti, Jaime; Vinuela, Javier. Bird Study; July 2001; v.48, no.2, p.236-244.

Nest-boxes used by Eurasian kestrels Falco tinnunculus are preferred by rollers Coracias garrulus. Aviles, Jesus M.; Sanchez, Juan M.; Parejo, Deseada. Folia Zoologica; 2001; v.50, no.4, p.317-320.

Nest-density distribution patterns in a yellow-legged gull archipelago colony. Vidal, Eric; Roche, Philip; Bonnet, Veronique; Tatoni, Thierry. Acta Oecologica; September-December 2001; v.22, no.5-6, p.245-251.

Nest-density distribution patterns in a yellow-legged gull archipelago colony. Vidal, Eric; Roche, Philip; Bonnet, Veronique; Tatoni, Thierry. Acta Oecologica; September-December 2001; v.22, no.5-6, p.245-251.

Nesting and reproductive activities of Greater Sage-Grouse in a declining northern Fringe population. Aldridge, Cameron L.; Brigham, R. Mark. Condor; August 2001; v.103, no.3, p.537-543.

Nesting and reproductive activities of Greater Sage-Grouse in a declining northern Fringe population. Aldridge, Cameron L.; Brigham, R. Mark. Condor; August 2001; v.103, no.3, p.537-543.

Nesting biology of the spotted catbird, Ailuroedus melanotis, a monogamous bowerbird (Ptilonorhynchidae), in Australian Wet Tropics upland rainforests. Frith, Clifford B.; Frith, Dawn W. Australian Journal of Zoology; 2001; v.49, no.3, p.279-310.

Nesting biology, distribution, and population estimate of the Grenada Hook-billed Kite Chondrohierax uncinatus mirus. Thorstrom, Russell; Massiah, Edward; Hall, Christi. Caribbean Journal of Science; December 2001; v.37, no.3-4, p.278-281.

Nesting climate and behaviour of Cape Barren geese (Cereopsis novaehollandiae Latham). Wagner, Kerstin; Seymour, Roger S. Australian Journal of Zoology; 2001; v.49, no.2, p.155-170.

Nesting ecology of Burrowing Owls occupying black-tailed prairie dog towns in southeastern Montana. Restani, Marco; Rau, Larry R.; Flath, Dennis L. Journal of Raptor Research; December 2001; v.35, no.4, p.296-303.

Nesting ecology of the Spotted Munia Lonchura punctulata in Mudumalai Wildlife Sanctuary (Southern India). Gokula, Varadhrajan. Acta Ornithologica (Warsaw); Summer 2001; v.36, no.1, p.1-5.

Nesting ecology of the Spotted Munia Lonchura punctulata in Mudumalai Wildlife Sanctuary (Southern India). Gokula, Varadhrajan. Acta Ornithologica (Warsaw); Summer 2001; v.36, no.1, p.1-5.

Nesting habitat characteristics and breeding performance of Dalmatian Pelicans in Lake Mikri Prespa, NW Greece. Catsadorakis, Giorgos; Crivelli, Alain J. Waterbirds; December 2001; v.24, no.3, p.386-393.

Nesting habitat characteristics and breeding performance of Dalmatian Pelicans in Lake Mikri Prespa, NW Greece. Catsadorakis, Giorgos; Crivelli, Alain J. Waterbirds; December 2001; v.24, no.3, p.386-393.

Nesting of Brandt's Cormorants in the northern Gulf of California. Cervantes-Sanchez, Juan; Mellink, Eric Western Birds; September 15 2001; v.32, no.2, p.134-135.

Nesting of the House Martin Delichon urbica in the city of Poznan (1976-1978 and 1982-1989). Ptaszyk, Jerzy. Acta Ornithologica (Warsaw); Winter 2001; v.36, no.2, p.135-142.

Nesting sites and nest types as important factors for the conservation of Humboldt penguins (Sphensicus humboldti). Paredes, Rosana; Zavalaga, Carlos B. Biological Conservation; August 2001; v.100, no.2, p.199-205.

Nesting success of birds in different silvicultural treatments in southeastern U.S. pine forests. Barber, David R.; Martin, Thomas E.; Melchiors, M. Anthony; Thill, Ronald E.; Wigley, T. Bently. Conservation Biology; February 2001; v.15, no.1, p.196-207.

Nesting type choice in the red-legged partridge (Alectoris rufa). Robles, R.; Alonso, M. E.; Sanchez, J. M.; Olmedo, J. A.; Gaudioso, V. R. Animal Science (Pencaitland); February 2001; v.72, no.1, p.29-34.

Nesting waterbirds of Isla Montague, northern Gulf of California, Mexico: Loss of eggs due to predation and flooding, 1993-1994. Peresbarbosa, Elisa; Mellink, Eric. Waterbirds; August 2001; v.24, no.2, p.265-271.

Nesting waterbirds of Isla Montague, northern Gulf of California, Mexico: Loss of eggs due to predation and flooding, 1993-1994. Peresbarbosa, Elisa; Mellink, Eric. Waterbirds; August 2001; v.24, no.2, p.265-271.

Nesting-season responses of three grassland sparrow species to previous-year mowing on reclaimed surface mines in Clarion County, Pennsylvania. Brauning, Daniel; Grishaver, Mary; Grainer, Chris. Journal of the Pennsylvania Academy of Science; August 2001; v.75, no.1, p.23-26.

Nestling aggression in broods of a siblicidal kingfisher, the laughing kookaburra. Nathan, Anjeli; Legge, Sarah; Cockburn, Andrew. Behavioral Ecology; Nov.-Dec. 2001; v.12, no.6, p.716-725.

Nestling aggression in broods of a siblicidal kingfisher, the laughing kookaburra. Nathan, Anjeli; Legge, Sarah; Cockburn, Andrew. Behavioral Ecology; Nov.-Dec. 2001; v.12, no.6, p.716-725.

Nestling growth and thermoregulatory development in subalpine Dusky Flycatchers. Pereyra, Maria Elena; Morton, Martin L. Auk; January 2001; v.118, no.1, p.116-136.

Nestling obesity in shearwaters: A comment on Hamer et al. (2000). Gaston, Anthony J. Ibis; October 2001; v.143, no.4, p.685-687.

Nestling obesity in shearwaters: A reply to Gaston (2001). Hamer, Keith C. Ibis; October 2001; v.143, no.4, p.686-687.

Nestling sex ratio variation in the cooperatively breeding acorn woodpecker (Melanerpes formicivorus). Koenig, Walter D.; Stanback, Mark T.; Haydock, Joseph; Kraaijeveld-Smit, Femmie. Behavioral Ecology and Sociobiology; April 2001; v.49, no.5, p.357-365.

Nest-maintenance effort and health status in chinstrap penguins, Pygoscelis antarctica: The functional significance of stone-provisioning behaviour. Fargallo, Juan A.; De Leon, Ana; Potti, Jaime. Behavioral Ecology and Sociobiology; July 2001; v.50, no.2, p.141-150.

Nest-predation at the edge: An experimental study contrasting two types of edges in the dry Chaco, Paraguay. Eriksson, Lena M.; Edenius, Lars; Areskoug, Veronika; Meritt, Dennis A. Ecography; December 2001; v.24, no.6, p.742-750.

Nests and nesting behavior of some little known Panamanian birds. Christian, Daniel G. Ornitologia Neotropical; 23 November 2001; v.12, no.4, p.327-336.

Nest-site characteristics and breeding density of two sympatric forest-falcons in Guatemala. Thorstrom, Russell. Ornitologia Neotropical; 23 November 2001; v.12, no.4, p.337-343.

Nest-site characteristics of Spotted Munia (Lonchura punctulata) in Mudumalai Wildlife Sanctuary, southern India. Gokula, Varadharajan; Vijayan, Lalitha. Journal of South Asian Natural History; May 2001; v.5, no.2, p.187-190.

Nest-site habitat selected by Short-toed Eagles Circaetus gallicus in Dadia forest (northeastern Greece). Bakaloudis, Dimitris E.; Vlachos, Christos; Papageorgiou, Nikolaos; Holloway, Graham J. Ibis; July 2001; v.143, no.3, p.391-401.

Nest-site safety predicts the relative investment made in first and replacement eggs by two long-lived seabirds. Hipfner, J. Mark; Gaston, Anthony J.; Storey, Anne E. Oecologia (Berlin); October 2001; v.129, no.2, p.234-242.

Nest-site selection and nesting success by gray catbirds in irrigated forests. Piergallini, Nell H.; Yahner, Richard H. Journal of the Pennsylvania Academy of Science; August 2001; v.75, no.1, p.3-7.

Nest-site selection and renesting in the blue-gray gnatcatcher (Polioptila caerulea). Kershner, Eric L.; Bollinger, Eric K.; Helton, Melissa N. American Midland Naturalist; October 2001; v.146, no.2, p.404-413.

Nest-site selection by black sparrow hawks Accipiter melanoleucus: Implications for managing exotic

Nest-site selection of white-browed fantail Rhipidura aureola in Mudumalai Wildlife Sanctuary. Gokula, V. Journal of the Bombay Natural History Society; August 2001; v.98, no.2, p.179-183.

Net amount of food affects autoshaped response rate, response latency, and gape amplitude in pigeons. Ploog, Bertram O. Learning and Motivation; November 2001; v.32, no.4, p.383-400.

Neural processing: The logic of multiplication in single neurons.

Neural sarcocystosis in a straw-necked ibis (Carphibis spinicollis) associated with a Sarcocystis neurona-like organism and description of muscular sarcocysts of an unidentified Sarcocystis species. Dubey, J. P.; Johnson, G. C.; Bermudez, A.; Suedmeyer, K. W.; Fritz, D. L. Journal of Parasitology; December 2001; v.87, no.6, p.1317-1322.

Neuromuscular and endocrine control of an avian courtship behavior. Schlinger, Barney A.; Schultz, J. Douglas; Hertel, Fritz. Hormones and Behavior; September 2001; v.40, no.2, p.276-280.

Neuromuscular and endocrine control of an avian courtship behavior. Schlinger, Barney A.; Schultz, J. Douglas; Hertel, Fritz. Hormones and Behavior; September 2001; v.40, no.2, p.276-280.

Neuropeptide-Y: A possible mediator of prolactin-induced feeding and regulator of energy balance in the ring dove (Strepto peliarisoria). Strader, A. D.; Buntin, J. D. Journal of Neuroendocrinology; April 2001; v.13, no.4, p.386-392.

Neurotransmitters regulating acid secretion in the proventriculus of the Houbara bustard (Chlamydotis undulata): A morphological

New ages for the last Australian megafauna: Continent-wide extinction about 46,000 years ago. Roberts, Richard G.; Flannery, Timothy F.; Ayliffe, Linda K.; Yoshida, Hiroyuki; Olley, Jon M.; Prideaux, Gavin J.; Laslett, Geoff M.; Baynes, Alexander; Smith, M. A.; Jones, Rhys; Smith, Barton L. Science (Washington D C); 8 June 2001; v.292, no.5523, p.1888-1892.

New bird records for the island of Panay, Philippines, including the first record of the Asian Stubtail Urosphena squameiceps

New distributional ranges for Melanesian birds. Dutson, Guy. Emu; 2001; v.101, no.3, p.237-248.

New host and geographical records for helminths parasites of Ardeidae (Aves, Ciconiiformes) in Brazil. de Arruda, Vanessa S.; Pinto, Roberto M.; Muniz-Pereira, Luis C. Revista Brasileira de Zoologia; Junho 2001; v.18, no.Supl. 1, p.225-232.

New light on the bird phenomenon at Jatinga in North Cachar Hills of Assam. Gupta, Kalyan K. Indian Forester; October 2001; v.127, no.10, p.1148-1154.

New name for the Bolivian Blackbird. Lowther, Peter E. Bulletin of the British Ornithologists' Club; December 2001; v.121, no.4, p.280-281.

New site record of the Indian great black woodpecker Dryocopus javensis (Horsfield) from Andhra Pradesh. Srinivasulu, C.; Rao, V. Vasudeva; Ravinder, G.; Nagulu, V. Journal of the Bombay Natural History Society; August 2001; v.98, no.2, p.280-281.

New specimens of the Middle Eocene fossil mousebird Selmes absurdipes Peters 1999. Mayr, Gerald. Ibis; July 2001; v.143, no.3, p.427-434.

New stem cell workshop. van Bekkum, Dirk W. Stem Cells (Miamisburg); 2001; v.19, no.3, p.260-262.

New Zealand dotterel catches fish. Parker, Kevin. Notornis; September 2001; v.48, no.3, p.164.

Newcastle disease virus in double-crested cormorants in Alabama, Florida, and Mississippi. Farley, Jacqueline M.; Romero, Carlos H.; Spalding, Marilyn G.; Avery, Michael L.; Forrester, Donald J. Journal of Wildlife Diseases; October 2001; v.37, no.4, p.808-812.

nitrogen content. Hassall, Mark; Riddington, Roger; Helden, Alvin. Oecologia (Berlin); March 2001; v.127, no.1, p.97-104.

No effect of parental quality or extrapair paternity on brood sex ratio in the blue tit (Parus caeruleus). Leech, David I.; Hartley, Ian R.; Stewart, Ian R. K.; Griffith, Simon C.; Burke, Terry. Behavioral Ecology; Nov.-Dec. 2001; v.12, no.6, p.674-680.

No effects of a feather mite on body condition, survivorship, or grooming behavior in the Seychelles warbler, Acrocephalus sechellensis. Dowling, Damian K.; Richardson, David S.; Komdeur, Jan. Behavioral Ecology and Sociobiology; August 2001; v.50, no.3, p.257-262.

No effects of a feather mite on body condition, survivorship, or grooming behavior in the Seychelles warbler, Acrocephalus sechellensis. Dowling, Damian K.; Richardson, David S.; Komdeur, Jan. Behavioral Ecology and Sociobiology; August 2001; v.50, no.3, p.257-262.

No evidence for effects of breeding density and male removal on extrapair paternity in the Pied Flycatcher. Ratti, Osmo; Lundberg, Arne; Tegelstrom, Hakan; Alatalo, Rauno V. Auk; January 2001; v.118, no.1, p.147-155.

Nocturnal activities of post-breeding Wood Storks. Bryan, A. Larry, Jr.; Snodgrass, Joel W.; Robinette, John R.; Daly, James L.; Brisbin, I. Lehr, Jr. Auk; April 2001; v.118, no.2, p.508-513.

Nocturnal autumn bird migration at Falsterbo, South Sweden. Zehnder, Susanna; Akesson, Susanne; Liechti, Felix; Bruderer, Bruno. Journal of Avian Biology; September 2001; v.32, no.3, p.239-248.

Nocturnal flight behavior of waterbirds in close proximity to a transmission powerline in the Florida Everglades. Deng, Jie; Frederick, Peter. Waterbirds; December 2001; v.24, no.3, p.419-424.

Nocturnal flight behavior of waterbirds in close proximity to a transmission powerline in the Florida Everglades. Deng, Jie; Frederick, Peter. Waterbirds; December 2001; v.24, no.3, p.419-424.

Nocturnal foraging and habitat use by male Burrowing Owls in a heavily-cultivated region of southern Saskatchewan. Sissons, Robert A.; Scalise, Karyn L.; Wellicome, Troy I. Journal of Raptor Research; December 2001; v.35, no.4, p.304-309.

Noggin and retinoic acid transform the identity of avian facial prominences. Lee, S.-H.; Fu, K. K.; Hui, J. N.; Richman, J. M. Nature (London); 20-27 December 2001; v.414, no.6866, p.909-912.

Non-apoid flower-visiting fauna of Everglades National Park, Florida. Pascarella, John B.; Waddington, K. D.; Neal, P. R. Biodiversity and Conservation; April 2001; v.10, no.4, p.551-566.

Nonbreeding habitat selection and foraging behavior of the Black-throated Green Warbler complex in Southeastern Mexico. Greenberg, Russell; Gonzales, Claudia Elia; Bichier, Peter; Reitsma, Robert. Condor; February 2001; v.103, no.1, p.31-37.

Nonequilibrium diversity dynamics of the Lesser Antillean avifauna. Ricklefs, Robert E.; Bermingham, Eldredge. Science (Washington D C); 16 November 2001; v.294, no.5546, p.1522-1524.

Nonlethal method for forensic evaluation of aldicarb exposure in wildlife. Cobb, G. P.; Harper, F. D.; Weisskopf, C. P. Archives of Environmental Contamination and Toxicology; January 2001; v.40, no.1, p.77-88.

Nonrandom mating and productivity of adult and subadult Cooper's Hawks. Boal, Clint W. Condor; May 2001; v.103, no.2, p.381-385.

Non-warning odors trigger innate color aversions: As long as they are novel. Jetz, Walter; Rowe, Candy; Guilford, Tim. Behavioral Ecology; Mar.-Apr. 2001; v.12, no.2, p.134-139.

Normobaric hyperoxic stress in budgerigars: Enzymic antioxidants and lipid peroxidation. Jaensch, S.; Cullen, L.; Raidal, S. R. Comparative Biochemistry and Physiology Part C Toxicology & Pharmacology; February 2001; v.128C, no.2, p.173-180.

Normobaric hyperoxic stress in budgerigars: Non-enzymic antioxidants. Jaensch, S.; Cullen, L.; Morton, L.; Raidal, S. R. Comparative Biochemistry and Physiology Part C Toxicology & Pharmacology; February 2001; v.128C, no.2, p.181-187.

northeastern Nicaragua. Arguedas-Negrini, Nidia. Revista de Biologia Tropical; June 2001; v.49, no.2, p.703-708.

Northern bobwhite (Colinus virginianus) abundance in relation to yearly weather and long-term climate patterns. Lusk, Jeffrey J.; Guthery, Fred S.; DeMaso, Stephen J. Ecological Modelling; 1 December 2001; v.146, no.1-3, p.3-15.

Northern bobwhite and scaled quail abundance and hunting regulation: A Texas example. Peterson, Markus J. Journal of Wildlife Management; October 2001; v.65, no.4, p.828-837.

Northern Gannet, Morus bassanus, nesting on Whitehorse Island, New Brunswick. Corrigan, Sean; Diamond, Antony W. Canadian Field-Naturalist; January-March 2001; v.115, no.1, p.176-177.

Northern Saw-whet owls in Rabun County. Beaton, Giff Oriole; September-December 2001; v.66, no.3-4, p.56-57.

Notch factor: A technique for separating Marsh Warblers Acrocephalus palustris from Reed Warblers A. scirpaceus on spring migration. Kelly, David; Cleere, Nigel; Pilcher, Charles W. T. Ringing & Migration; November 2001; v.20, no.4, p.289-291.

note items removed include studies on broiler chickens, chicken diseases (quail, too) poultry industry studies except where behaviors are investigated; genetic studies (organism unlisted, etc.) physiological studies; development studies; parasitic and disease (viral) esp. where human vectors (except Nile Valley Fever, etc.)

Note on a method for individual recognition in feed pecking in free running groups of hens. Brannas, Eva; Wiklund, Bo-Soren; Burel, Christine; Ciszuk, Paul; Liljedahl, Lars-Erik; Kiessling, Anders. Applied Animal Behaviour Science; 6 January 2001; v.70, no.3, p.239-243.

Note on the occurrence of Finsch's Bulbul on Sumatra. van Balen, S. Bulletin of the British Ornithologists' Club; June 2001; v.121, no.2, p.94-98.

Note on the Philippine cross-bill Loxia curvirostra luzoniensis. Clouet, Michel; Goar, Jean-Louis. Alauda; 2001; v.69, no.2, p.331-334.

Notes on interactions between monkeys and African crowned eagles in Tai National Park, Ivory Coast. Shultz, Susanne. Folia Primatologica; July-August 2001; v.72, no.4, p.248-250.

Notes on the diet of successful and failed breeding Tawny Owls (Strix aluco) in urban Rome, Italy. Ranazzi, Lamberto; Manganaro, Alberto; Salvati, Luca. Acta Zoologica Cracoviensia; 2001; v.44, no.1, p.53-57.

Notes on the natural history of the Pale-mandibled Aracari. Berg, Karl S. Journal of Field Ornithology; Spring 2001; v.72, no.2, p.258-266.

Notes on the poorly-known Buckley's Forest Falcon Micrastur buckleyi including voice, range and first Brazilian records. Whittaker, Andrew. Bulletin of the British Ornithologists' Club; September 2001; v.121, no.3, p.198-208.

Notes on the sixth specimen record of the Three-toed Swiftlet Aerodramus papuensis in Papua New Guinea. Hamilton, Steven G.; Erico, John; Tarburton, Michael K. Corella; March 2001; v.25, no.1, p.12-14.

Notes on the status and distribution of the Long-billed Curlew in the Rosetown-Biggar District, SK. Renaud, Wayne E.; Wapple, Guy J. Blue Jay; December 2001; v.59, no.4, p.188-192.

Notes on the winter diet of Short-eared Owls in northern California. Bogiatto, Raymond J.; Hindley, John A.; Surles, Rebecca L. Western North American Naturalist; October 2001; v.61, no.4, p.501-502.

Notes on the winter diet of the crested francolin in South Africa. van Niekerk, J. H. South African Journal of Wildlife Research; 2001; v.31, no.1-2, p.66-67.

Novel food use by Grey Kingbirds and Red-necked Pigeons in Barbados. Lefebvre, Louis; Reader, Simon M.; Webster, Sandra J. Bulletin of the British Ornithologists' Club; December 2001; v.121, no.4, p.247-249.

Novel motor gestures for phonation during inspiration enhance the acoustic complexity of birdsong. Goller, Franz; Daley, Monica A. Proceedings of the Royal Society Biological Sciences Series B; 22 November 2001; v.268, no.1483, p.2301-2305.

Novel motor gestures for phonation during inspiration enhance the acoustic complexity of birdsong. Goller, Franz; Daley, Monica A. Proceedings of the Royal Society Biological Sciences Series B; 22 November 2001; v.268, no.1483, p.2301-2305.

Number of close spatial and temporal neighbors decreases the probability of nest failure and shiny cowbird parasitism in colonial Yellow-winged Blackbirds. Massoni, Viviana; Reboreda, Juan Carlos. Condor; August 2001; v.103, no.3, p.521-529.

Number of close spatial and temporal neighbors decreases the probability of nest failure and shiny cowbird parasitism in colonial Yellow-winged Blackbirds. Massoni, Viviana; Reboreda, Juan Carlos. Condor; August 2001; v.103, no.3, p.521-529.

Numbers and breeding distribution of the Bee-eater Merops apiaster in province Voivodina (northern Serbia) between 1987 and 1990. Purger, J. J. Vogelwelt; 2001; v.122, no.5, p.279-282.

Numbers and distribution of Northern Lapwings Vanellus vanellus breeding in England and Wales in 1998. Wilson, Andrew M.; Vickery, Juliet A.; Browne, Stephen J. Bird Study; March 2001; v.48, no.1, p.2-17.

Numbers, distribution and breeding biology of Ring Ouzels in upper Glen Esk, 1992-98. Arthur, D. S. C.; White, S. A. Scottish Birds; June 2001; v.22, no.1, p.50-59.

Numbers, migration phenology and survival of Purple Sandpipers Calidris maritima at Gourdon, eastern Scotland. Summers, Ron W.; Nicoll, Mike; Peach, Will. Bird Study; July 2001; v.48, no.2, p.139-146.

Numbers, migration phenology and survival of Purple Sandpipers Calidris maritima at Gourdon, eastern Scotland. Summers, Ron W.; Nicoll, Mike; Peach, Will. Bird Study; July 2001; v.48, no.2, p.139-146.

Nutrient compositions of acorns and horse chestnuts in relation to seed-hoarding. Shimada, Takuya. Ecological Research; December 2001; v.16, no.4, p.803-808.

Nutrition related micrognathia in ostriches. Perelman, B.; Fucks, D.; Heller, D.; Schonfeld, M. Israel Journal of Veterinary Medicine; 2001; v.56, no.4, p.135-140.

Nutritional and bacteriological properties of some game duck carcasses. Khalifa, A. H.; Nassar, A. M. Nahrung; August 2001; v.45, no.4, p.286-292.

Nutritional and genetic adaptation of galliform birds: Implications for hand-rearing and restocking. Liukkonen-Anttila, Tuija. Acta Universitatis Ouluensis A Scientiae Rerum Naturalium; 2001; no.367, p.1-73.

Nutritional condition and muscular features of wintering Long-billed Murrelets in Japan. Oka, Nariko; Hamasoto, Harum.i Condor; November 2001; v.103, no.4, p.874-878.

Nutritional interactions and fruit removal: Cedar Waxwing consumption of Viburnum opulus fruits in spring. Witmer, Mark C. Ecology (Washington D C); November 2001; v.82, no.11, p.3120-3130.

Nutritional quality of shinnery oak buds and catkins in response to burning or herbivory. Boyd, Chad S.; Vermeire, Lance T.; Bidwell, T. G.; Lochmiller, Robert L. Southwestern Naturalist; September 2001; v.46, no.3, p.295-301.

Nutritional quality of shinnery oak buds and catkins in response to burning or herbivory. Boyd, Chad S.; Vermeire, Lance T.; Bidwell, T. G.; Lochmiller, Robert L. Southwestern Naturalist; September 2001; v.46, no.3, p.295-301.

Observational learning in hummingbirds. Altshuler, Douglas L.; Nunn, Andrea M. Auk; July 2001; v.118, no.3, p.795-799.

Observations from banding House Finches in the fall of 1995 at Regina, SK. Hjertaas, Dale; Hjertaas, Paule. Blue Jay; June 2001; v.59, no.2, p.86-89.

Observations of predation events at bird nests in central Panama. Robinson, W. Douglas; Robinson, Tara Rodden. Journal of Field Ornithology; Winter 2001; v.72, no.1, p.43-48.

Observations of predation of Hen Harrier nestlings by Hooded Crows in Orkney. Amar, Arjun; Burthe, Sarah. Scottish Birds; June 2001; v.22, no.1, p.65-66.

Observations on burdock-killed birds in King's Park, Winnipeg, MB. Underwood, Todd J.; Underwood, Robyn M. Blue Jay; June 2001; v.59, no.2, p.64-69.

Observations on the coexistence of Palearctic and African Orioles Oriolus spec. in Zimbabwe. Baumann, Sabine. Vogelwelt; 2001; v.122, no.2, p.67-79.

Observations on the diet of the Topknot Pigeon Lopholaimus antarcticus in the Illawarra Rainforest, New South Wales. Waterhouse, R. D. Corella; June 2001; v.25, no.2, p.32-38.

Observations on the nocturnal migration of the Kurrichane Buttonquail in northern South Africa. Herholdt, J. J.

Observations on the patterns of embryonic mortality over the laying season of pheasants. Deeming, D. C.; Wadland, D. British Poultry Science; December 2001; v.42, no.5, p.569-573.

Observations on the status of the land birds, wading birds and seabirds of Samoa. Tarburton, Michael K. Emu; 2001; v.101, no.4, p.349-360.

Obtaining and storing House Sparrow eggs in quantity for nest-predation experiments. DeGraaf, Richard M.; Maier, Thomas J. Journal of Field Ornithology; Winter 2001; v.72, no.1, p.124-130.

Occurrence of Burrowing Owls in black-tailed prairie dog colonies on Great Plains National Grasslands. Sidle, John G.; Ball, Mark; Byer, Timothy; Chynoweth, James J.; Foli, Gary; Hodorff, Robert; Moravek, Glen; Peterson, Richard;Svingen, Daniel N. Journal of Raptor Research; December 2001; v.35, no.4, p.316-321.

Occurrence of Greater Sage-Grouse X Sharp-tailed Grouse hybrids in Alberta. Aldridge, Cameron L.; Oyler-McCance, Sara J.; Brigham, R. Mark. Condor; August 2001; v.103, no.3, p.657-660.

Occurrence of lesser florican Sypheotides indica at Hosor, in Nashik district, Maharashtra. Raha, B.; Prakash, Vibhu. Journal of the Bombay Natural History Society; August 2001; v.98, no.2, p.279.

Occurrence of Pasteurella multocida and related species in village free ranging chickens and their animal contacts in Tanzania. Muhairwa, A. P.; Mtambo, M. M. A.; Christensen, J. P.; Bisgaard, M. Veterinary Microbiology; 26 January 2001; v.78, no.2, p.139-153.

Occurrence of the Common Buzzard (Buteo buteo) in mediterranean coastal woodlands: Wood size and vegetation affect patch occupation. Salvati, Luca; Manganaro, Alberto; Ranazzi, Lamberto. Ornithologischer Anzeiger; Oktober 2001; v.40, no.2-3, p.165-171.

Occurrence of the white-winged black tern Chlidonias leucopterus in Kerala. Ravindran, P. K. Journal of the Bombay Natural History Society; April 2001; v.98, no.1, p.112-113.

Occurrence patterns of Peregrine Falcons on Southeast Farallon Island, California, by subspecies, age, and sex. Earnheart-Gold, Sasha; Pyle, Peter. Western Birds; September 15 2001; v.32, no.2, p.119-126.

Occurrence of great Indian bustard Ardeotis nigriceps at Hosur, Nashik district, Maharashtra. Raha, B.; Prakash, Vibhu. Journal of the Bombay Natural History Society; April 2001; v.98, no.1, p.110-111.

Occurrences of candidiasis in a Fisher's Lovebird and a budgerigar. Sato, Yoshihiko; Aoyagi, Takahiro; Kobayashi, Takashi; Inoue, Jun. Journal of Veterinary Medical Science; August 2001; v.63, no.8, p.939-941.

Ocular and encephalic toxoplasmosis in canaries. Williams, Susan M.; Fulton, Richard M.; Render, James A.; Mansfield, Linda; Bouldin, Michelle. Avian Diseases; January-March 2001; v.45, no.1, p.262-267.

Offspring age and nest defence: Test of the feedback hypothesis in the meadow pipit. Pavel, Vaclav; Bures, Stanislav. Animal Behaviour; February 2001; v.61, no.2, p.297-303.

Offspring body condition and immunocompetence are negatively affected by high breeding densities in a colonial seabird: A multiscale approach. Tella, J. L.; Forero, M. G.; Bertellotti, M.; Donazar, J. A.; Blanco, G.; Ceballos, O. Proceedings of the Royal Society Biological Sciences Series B; 22 July 2001; v.268, no.1475, p.1455-1461.

Offspring sex ratio is unrelated to male attractiveness in dark-eyed juncos (Junco hyemalis). Grindstaff, Jennifer L.; Buerkle, C. Alex; Casto, Joseph M.; Nolan, Val, Jr.; Ketterson, Ellen D. Behavioral Ecology and Sociobiology; September 2001; v.50, no.4, p.312-316.

On a nest of the Planalto Woodcreeper, Dendrocolaptes platyrostris, with taxonomic and conservation notes. Willis, Edwin O.; Oniki, Yoshika. Wilson Bulletin; June 2001; v.113, no.2, p.231-233.

On cognitive conservation biology: Why chickadees leave a patch of woodland. Grubb, Thomas C., Jr.; Bronson, C. L. Journal of Avian Biology; December 2001; v.32, no.4, p.372-376.

On drawing conclusions nine years after the Exxon Valdez oil spill. Wiens, John A.; Day, Robert H.; Murphy, Stephen M.; Parker, Keith R. Condor; November 2001; v.103, no.4, p.886-892.

On misconceptions of evolutionary archaeology: Confusing macroevolution and microevolution. Lyman, R. Lee; O'Brien, Michael J. Current Anthropology; June 2001; v.42, no.3, p.408-409.

On the breeding bird community of Wadi Al-Kharrar, Jordan Valley. Khoury, Fares. Zoology in the Middle East; 2001; v.22, p.37-44.

On the distribution of terrestrial invertebrates at Cape Bird, Ross Island, Antarctica. Sinclair, Brent J. Polar Biology; June 2001; v.24, no.6, p.394-400.

On the origin of Darwin's finches. Sato, Akie; Tichy, Herbert; O'hUigin, Colm; Grant, Peter R.; Grant, B. Rosemary; Klein, Jan. Molecular Biology and Evolution; March 2001; v.18, no.3, p.299-311.

On the ruddy color of the Ruddy Turnstone. Hailman, Jack P. Florida Field Naturalist; June 2001; v.29, no.2, p.47-48.

On the species identity of Ascaridia galli (Schrank, 1788) and Ascaridia dissimilis (Perez Vigueras, 1931): A comparative genetic study. Snabel, V.; Permin, A.; Magwisha, H. B.; Suo, X.; Varady, M.; Tomasovicova, O. Helminthologia (Bratislava); December 2001; v.38, no.4, p.221-226.

On the taxonomy and biogeography of Euodia and Melicope (Rutaceae). Hartley, T. G. Allertonia; February 2001; v.8, no.1, p.1-319.

On the temporal variability of the physical environment over the south-eastern Bering Sea. Stabeno, P. J.; Bond, N. A.; Kachel, N. B.; Salo, S. A.; Schumacher, J. D. Fisheries Oceanography; March 2001; v.10, no.1, p.81-98.

On the termination of species. Gibbs, W. Wayt. Scientific American; November 2001; v.285, no.5, p.40-49.

On types of trochilids in the Natural History Museum, Tring III. Amazilia alfaroana Underwood (1896), with notes on

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Ontario Bird Records Committee Report for 2000. Roy, Kayo J. Ontario Birds; August 2001; v.19, no.2, p.45-64.

Ontogeny of calls of a nonpasserine species: The grey crowned crane Balearica regulorum gibbericeps. Budde, Christa. African Journal of Ecology; March 2001; v.39, no.1, p.33-37.

Ontogeny of catabolic and morphological properties of skeletal muscle of the red-winged blackbird (Agelaius phoeniceus). Olson, J. M. Journal of Comparative Physiology B Biochemical Systemic and Environmental Physiology; October 2001; v.171, no.7, p.527-542.

Ontogeny of deer mice (Peromyscus maniculatus) and montane voles (Microtus montanus) as owl prey. Lyman, R. Lee; Power, Emma; Lyman, R. Jay. American Midland Naturalist; July 2001; v.146, no.1, p.72-79.

Ontogeny of defense and adaptive coloration in larvae of the comma butterfly, Polygonia c-album (Nymphalidae). Nylin, Soren; Gamberale-Stille, Gabriella; Tullberg, Birgitta S. Journal of the Lepidopterists' Society; 15 February 2001; v.55, no.2, p.69-73.

Optimal conditions for breeding of captive Humboldt penguins (Spheniscus humboldti): A survey of British zoos. Blay, Nicola; Cote, Isabelle M. Zoo Biology; 2001; v.20, no.6, p.545-555.

Optimal departure decisions of songbirds from an experimental stopover site and the significance of weather. Danhardt, Juliana; Lindstrom, Ake. Animal Behaviour; August 2001; v.62, no.2, p.235-243.

Optimizing removals to control a metapopulation: Application to the yellow legged herring gull (Larus cachinnans). Brooks, Elizabeth N.; Lebreton, Jean-Dominique. Ecological Modelling; 20 January 2001; v.136, no.2-3, p.269-284.

Opuntia: A "prickly paradigm" for quail management in west-central Texas. Slater, Stacey C.; Rollins, Dale; Dowler, Robert C.; Scott, Cody B. Wildlife Society Bulletin; Summer 2001; v.29, no.2, p.713-719.

Orange Bishops breeding in Phoenix, Arizona. Gatz, Thomas A. Western Birds; 2001; v.32, no.1, p.81-82.

Organochlorine concentrations and eggshell thickness in failed eggs of the California Clapper Rail from south San Francisco Bay. Schwarzbach, Steven E.; Henderson, John D.; Thomas, Carmen M.; Albertson, Joy D. Condor; August 2001; v.103, no.3, p.620-624.

Organochlorine concentrations and eggshell thickness in failed eggs of the California Clapper Rail from south San Francisco Bay. Schwarzbach, Steven E.; Henderson, John D.; Thomas, Carmen M.; Albertson, Joy D. Condor; August 2001; v.103, no.3, p.620-624.

Organochlorine contaminant exposure and reproductive success of black-crowned night-herons (Nycticorax nycticorax) nesting in Baltimore Harbor, Maryland. Rattner, B. A.; McGowan, P. C.; Hatfield, J. S.; Hong, C.-S.; Chu, S. G. Archives of Environmental Contamination and Toxicology; July 2001; v.41, no.1, p.73-82.

Organochlorine contaminants and biomarker response in double-crested cormorants nesting in Green Bay and Lake Michigan, Wisconsin, USA. Custer, T. W.; Custer, C. M.; Hines, R. K.; Stromborg, K. L.; Allen, P. D.; Melancon, M. J.; Henshel, D. S. Archives of Environmental Contamination and Toxicology; January 2001; v.40, no.1, p.89-100.

Organochlorine pesticide residues in Helmeted Guineafowl (Numida meleagris), South Africa. Lotter, L.; Bouwman, H. Bulletin of Environmental Contamination and Toxicology; February 2001; v.66, no.2, p.162-170.

Orientation in migratory birds: Time-associated relearning of celestial cues. Wiltschko, Roswitha; Munro, Ursula; Ford, Hugh; Wiltschko, Wolfgang. Animal Behaviour; August 2001; v.62, no.2, p.245-250.

Origin of feathers: Perspectives from fossil evidence. Zhou, Zhonghe; Zhang, Fucheng. Science Progress; 2001; v.84, no.2, p.87-104.

Ornithological research traditions in central Europe during the 19th and 20th centuries. Haffer, Juergen. Journal fuer Ornithologie; Juni 2001; v.142, no.Special Issue 1, p.27-93.

Ornithological research traditions in central Europe during the 19th and 20th centuries. Haffer, Juergen. Journal fuer Ornithologie; Juni 2001; v.142, no.Special Issue 1, p.27-93.

Osprey Pandion haliaetus management in Vestfold county, SE-Norway 1984-98. Steen, Odd Frydenlund; Hansen, Gunnar. Vogelwelt; 2001; v.122, no.3-4, p.223-226.

Ospreys Pandion haliaetus in Estonia: A historical perspective. Lohmus, Asko. Vogelwelt; 2001; v.122, no.3-4, p.167-171.

Osservazioni sulla fauna a vertebrati pleistocenici della Grotta Cola (Abruzzo, Aquila). Di Canzio, Emanuele; Petronio, Carmelo. Bollettino della Societa Paleontologica Italiana; 2001; v.40, no.1, p.105-114.

Osteological investigations of the incidence of cranial alterations in domestic ducks (Anas platyrhynchos f. dom.) with feather crests. Bartels, T.; Brinkmeier, J.; Portmann, S.; Krautwald-Junghanns, M.-E.; Kummerfeld, N.; Boos, A. Annals of Anatomy; January 2001; v.183, no.1, p.73-80.

Osteology of the shoulder girdle in the Piciformes, Passeriformes and related groups of birds. Hofling, Elizabeth; Alvarenga, Herculano M. F. Zoologischer Anzeiger; July 2001; v.240, no.2, p.196-208.

Ostrich ocular optics. Martin, Graham R.; Ashash, Udi; Katzir, Gadi. Brain Behavior and Evolution; 2001; v.58, no.2, p.115-120.

Ostrich pericardium, a biomaterial for the construction of valve leaflets for cardiac bioprostheses: Mechanical behaviour, selection and interaction with suture materials. Garcia Paez, Jose M.; Jorge-Herrero, Eduardo; Carrera, Antonio; Millan, Isabel; Rocha, Aurora; Calero, Patricia; Cordon, Angeles; Sainz, Natividad; Castillo-Olivares, Jose L. Biomaterials; 2001; v.22, no.20, p.2731-2740.

Otomyine rodent refuge habitat: Does it represent habitat quality for pale chanting-goshawk families? Malan, Gerard. South African Journal of Wildlife Research; 2001; v.31, no.1-2, p.49-58.

Owl occurrence and calling behavior in a tropical rain forest. Enriquez Rocha, Paula L.; Rangel-Salazar, J. Luis. Journal of Raptor Research; June 2001; v.35, no.2, p.107-114.

oystercatchers (Haematopus ostralegus). Heg, Dik; van der Velde, Marco. Behavioral Ecology and Sociobiology; January 2001; v.49, no.2-3, p.157-169.

Pair copulation frequency correlates with female reproductive performance in Tree Sparrows Passer montanus. Heeb, Philipp. Journal of Avian Biology; June 2001; v.32, no.2, p.120-126.

Pair duets in the yellow-naped amazon (Psittaciformes: Amazona auropalliata): Responses to playbacks of different dialects. Wright, Timothy F.; Dorin, Melinda. Ethology; February 2001; v.107, no.2, p.111-124.

Palatability of bird repellents to Rattus norvegicus. Spurr, Eric B.; Porter, Richard E. R.; Thomson, Caroline. Pest Management Science; July 2001; v.57, no.7, p.615-619.

Panbiogeography from tracks to ocean basins: Evolving perspectives. Grehan, J. R. Journal of Biogeography; April 2001; v.28, no.4, p.413-429.

Parakeet auklet: Aethia psittacula. Jones, Ian L.; Konyukhov, Nikolai B.; Wiliams, Jeffrey C.; Byrd, G. Vernon. Birds of North America; 2001; no.594, p.1-19.

Parallel working memory for spatial location and food-related object cues in foraging pigeons: Binocular and lateralized monocular performance. Prior, Helmut; Guentuerkuen, Onur. Learning & Memory (Cold Spring Harbor); January-February 2001; v.8, no.1, p.44-51.

Parasites reduce territorial behaviour in red grouse (Lagopus lagopus scoticus). Fox, Amanda; Hudson, Peter J. Ecology Letters; March 2001; v.4, no.2, p.139-143.

Parasitic cheyletoid mites (Acari: Cheyletoidea) associated with passeriform birds (Aves: Passeriformes) in Canada. Bochkov, Andre V.; Galloway, Terry D. Canadian Journal of Zoology; November 2001; v.79, no.11, p.2014-2028.

Parasitic helminths of five species of owls from Florida, U.S.A. Kinsella, John M.; Foster, Garry W.; Forrester, Donald J. Comparative Parasitology; January 2001; v.68, no.1, p.130-134.

Parentage assignment and extra-group paternity in a cooperative breeder: The Seychelles warbler (Acrocephalus sechellensis). Richardson, D. S.; Jury, F. L.; Blaakmeer, K.; Komdeur, J.; Burke, T. Molecular Ecology; September 2001; v.10, no.9, p.2263-2273.

Parental age and offspring ectoparasite load in European Shags Stictocarbo aristotelis. Daunt, Francis; Monaghan, Patricia; Wanless, Sarah; Harris, Mike P. Ardea; 2001; v.89, no.3, p.449-455.

Parental care and parentage in monogamous great spotted woodpeckers (Picoides major) and middle spotted woodpeckers (Picoides medius). Michalek, Klaus G.; Winkler, Hans. Behaviour; October 2001; v.138, no.10, p.1259-1285.

Parental care in estrildid finches: Experimental tests of a model of Vidua brood parasitism. Payne, Robert B.; Woods, Jean L.; Payne, Laura L. Animal Behaviour; September 2001; v.62, no.3, p.473-483.

Parental care in relation to brood size in the House Finch. Stoehr, Andrew M.; McGraw, Kevin J.; Nolan, Paul M.; Hill, Geoffrey E. Journal of Field Ornithology; Summer 2001; v.72, no.3, p.412-418.

Parental care in relation to brood size in the House Finch. Stoehr, Andrew M.; McGraw, Kevin J.; Nolan, Paul M.; Hill, Geoffrey E. Journal of Field Ornithology; Summer 2001; v.72, no.3, p.412-418.

Parental investment in male and female offspring by the Peregrine Falcon, Falco peregrinus. Boulet, Mark; Olsen, Penny; Cockburn, Andrew; Newgrain, Keith. Emu; 2001; v.101, no.2, p.95-103.

Parking garage swallows. Fairfield, George. Ontario Birds; April 2001; v.19, no.1, p.26-27.

Partial knowledge and answer-until-correct tasks in birds and humans. Hutchinson, T. P. Biometrics; December 2001; v.57, no.4, p.1251-1252.

Partial lesions in the anterior forebrain pathway affect song production in adult Bengalese finches. Kobayashi, Kohta; Uno, Hiroyuki; Okanoya, Kazuo. Neuroreport; 12 February 2001; v.12, no.2, p.353-358.

Partitioning of foraging effort in Adelie penguins provisioning chicks at Bechervaise Island, Antarctica. Clarke, J. R. Polar Biology; January 2001; v.24, no.1, p.16-20.

Passage records of Amur Falcon Falco amurensis from SE Asia to southern Africa including first records from Ethiopia. Clement, Peter; Holman, David. Bulletin of the British Ornithologists' Club; December 2001; v.121, no.4, p.222-230.

Passage through bird guts causes interspecific differences in seed germination characteristics. Traveset, A.; Riera, N.; Mas, R. E. Functional Ecology; October 2001; v.15, no.5, p.669-675.

Passerine densities in riparian forests of southeast Alaska: Potential effects of anadromous spawning salmon. Gende, Scott M.; Willson, Mary F. Condor; August 2001; v.103, no.3, p.624-629.

Passive absorption of hydrophilic carbohydrate probes by the house sparrow Passer domesticus. Chediack, J. G.; Caviedes-Vidal, E.; Karasov, W. H.; Pestchanker, M. Journal of Experimental Biology; February 2001; v.204, no.4, p.723-731.

Passive haemagglutination assay of fowl pox virus strain. Tomar, Alka; Garg, S. K. Indian Veterinary Journal; January 2001; v.78, no.1, p.74-76.

Passive interference competition by Glaucous-winged Gulls on Black-legged Kittiwakes: A cost of feeding in flocks. Maniscalco, John M.; Ostrand, William D.; Suryan, Robert M.; Irons, David B. Condor; August 2001; v.103, no.3, p.616-619.

Patch choice decisions of wild blackbirds: The role of preharvest public information. Smith, Rik D.; Ruxton, Graeme D.; Cresswell, Will. Animal Behaviour; June 2001; v.61, no.6, p.1113-1124.

Paternity and parental care in the black-throated blue warbler, Dendroica caerulescens. Chuang-Dobbs, Helen C.; Webster, Michael S.; Holmes, Richard T. Animal Behaviour; July 2001; v.62, no.1, p.83-92.

Pathogenicity of avian strains of Pasteurella multocida. Balakrishnan, G.; Mini, M. Indian Veterinary Journal; October 2001; v.78, no.10, p.959-960.

Pathogenicity, serological responses, and diagnosis of experimental and natural malarial infections in native Hawaiian thrushes. Atkinson, Carter T.; Lease, Julie K.; Drake, Beth M.; Shema, Nicholas P. Condor; May 2001; v.103, no.2, p.209-218.

Pattern amplitude is related to pattern imitation during the song development of nightingales. Brumm, Henrik; Hultsch, Henrike. Animal Behaviour; April 2001; v.61, no.4, p.747-754.

Pattern of goshawk Accipiter gentilis predation on four forest grouse species in northern Finland. Tornberg, Risto. Wildlife Biology; December 2001; v.7, no.4, p.245-256.

Patterns of arthropod abundance, vegetation, and microclimate at boreal forest edge and interior in two landscapes: Implications for forest birds. Van Wilgenburg, Steve L.; Mazerolle, Daniel F.; Hobson, Keith A. Ecoscience; 2001; v.8, no.4, p.454-461.

Patterns of bird abundance and habitat use in rice fields of the Kanto Plain, central Japan. Maeda, Taku. Ecological Research; September 2001; v.16, no.3, p.569-585.

Patterns of bird species richness and composition on islands off Arnhem Land, Northern Territory, Australia. Woinarski, J. C. Z.; Fisher, A.; Brennan, K.; Morris, I.; Chatto, R. Austral Ecology; February 2001; v.26, no.1, p.1-13.

Patterns of breeding fidelity in the Red-backed Shrike (Lanius collurio). Simek, Jaroslav. Ornis Fennica; 2001; v.78, no.2, p.61-71.

Patterns of corticosterone secretion in migrating semipalmated sandpipers at a major spring stopover site. Mizrahi, David S.; Holberton, Rebecca L.; Gauthreaux, Sidney A., Jr. Auk; January 2001; v.118, no.1, p.79-91.

Patterns of food preferences in mourning doves. Hayslette, Steven E.; Mirarchi, Ralph E. Journal of Wildlife Management; October 2001; v.65, no.4, p.816-827.

Patterns of food preferences in mourning doves. Hayslette, Steven E.; Mirarchi, Ralph E. Journal of Wildlife Management; October 2001; v.65, no.4, p.816-827.

Patterns of incubation and nest-site attentiveness in relation to organochlorine (PCB) contamination in glaucous gulls. Bustnes, J. O.; Bakken, V.; Erikstad, K. E.; Mehlum, F.; Skaare, J. U. Journal of Applied Ecology; August 2001; v.38, no.4, p.791-801.

Patterns of Knemidokoptes jamaicensis (Acari: Knemidokoptidae) infestations among eight new avian hosts in the Dominican Republic. Latta, Steven C.; O'Connor, Barry M. Journal of Medical Entomology; May 2001; v.38, no.3, p.437-440.

Patterns of movement during passerine migration on an island stopover site. Gellin, Caren E.; Morris, Sara R. Northeastern Naturalist; October 1 2001; v.8, no.3, p.253-266.

Patterns of predation risk and survival of bird nests in a Chilean agricultural landscape. Willson, Mary F.; Morrison, Joan L.; Sieving, Kathryn E.; de Santo, Toni L.; Santisteban, Leonard; Diaz, Ivan. Conservation Biology; April 2001; v.15, no.2, p.447-456.

Patterns of success in game bird (Aves: Galliformes) introductions to the Hawaiian islands and New Zealand. Moulton, Michael P.; Sanderson, James G.; Labisky, Ronald F. Evolutionary Ecology Research; July 2001; v.3, no.5, p.507-519.

Patterns of testosterone and prolactin concentrations and reproductive behavior of helpers and breeders in the cooperatively breedingred-cockaded woodpecker (Picoides borealis). Khan, Memuna Z.; McNabb, F. M. A.; Walters, Jeffrey R.; Sharp, P. J. Hormones and Behavior; August 2001; v.40, no.1, p.1-13.

Patterns of variation in waterbird numbers on four Rift Valley lakes in Kenya, 1991-1999. Owino, A. O.; Oyugi, J. O.; Nasirwa, O. O.; Bennun, L. A. Hydrobiologia; 15 August 2001; v.458, p.45-53.

Patterns of vertebrate species richness and conservation in Nicaragua. Gillespie, Thomas W.; Nicholson, Kirsten E.; McCrary, Jeffrey. Natural Areas Journal; April 2001; v.21, no.2, p.159-167.

PCB concentrations and metabolism patterns in common terns (Sterna hirundo) from different breeding colonies in The Netherlands. Van Den Brink, Nico W.; Bosveld, A. (Bart) T. C. Marine Pollution Bulletin; April 2001; v.42, no.4, p.280-285.

PCBs and organochlorine pesticide residues in eggs of Audouin's gull (Larus audouinii) in the north-eastern Mediterranean. Goutner, Vassilis; Albanis, Triantafyllos; Konstantinou, Ioannis; Papakonstantinou, Kostas. Marine Pollution Bulletin; May 2001; v.42, no.5, p.377-388.

PCBs in three predatory birds from Galicia (NW Spain). Lopez-Lopez, T. J.; Alvarez-Pineiro, M. E.; Lage-Yusty, M. A.; Simal-Lozano, J. Bulletin of Environmental Contamination and Toxicology; April 2001; v.66, no.4, p.497-503.

PCBs, TEQs and plasma retinol in grey heron (Ardea cinerea) hatchlings from two rookeries in Norway. Jenssen, Bjorn Munro; Nilssen, Vibeke Henden; Murvoll, Kari Mette; Skaare, Janneche Utne. Chemosphere; July 2001; v.44, no.3, p.483-489.

Pectoralis muscle performance during ascending and slow level flight in mallards (Anas platyrhynchos). Williamson, Michael R.; Dial, Kenneth P.; Biewener, Andrew A. Journal of Experimental Biology; February 2001; v.204, no.3, p.495-507.

Pelicans at risk in Salton sea: An eco-epidemiological model. Chattopadhyay, J.; Bairagi, N. Ecological Modelling; 20 January 2001; v.136, no.2-3, p.103-112.

Pellets as indicators of diet in Great Skuas Catharacta skua. Votier, Stephen C.; Bearhop, Stuart; Ratcliffe, Norman; Furness, Robert W. Bird Study; November 2001; v.48, no.3, p.373-376.

Perceptual completion in rhesus monkeys (Macaca mulatta) and pigeons (Columba livia). Fujita, Kazuo. Perception & Psychophysics; January 2001; v.63, no.1, p.115-125.

Perceptual relevance of species-specific differences in acoustic signal structure in Streptopelia doves. Beckers, Gabriel J. L.; Ten Cate, Carel. Animal Behaviour; September 2001; v.62, no.3, p.511-518.

Perch selection by singing chaffinches: A better view of surroundings and the risk of predation. Krams, Indrikis. Behavioral Ecology; May-June 2001; v.12, no.3, p.295-300.

Perdicula asiatica. Sudhakumari, Cheni Chery; Haldar, Chandana. Zoological Science (Tokyo); January 2001; v.18, no.1, p.71-79.

Perfluorooctane sulfonate in fish-eating water birds including bald eagles and albatrosses. Kannan, Kurunthachalam; Franson, J. Christian; Bowerman, William W.; Hansen, Kris J.; Jones, Paul D.; Giesy, John P. Environmental Science & Technology; August 2001; v.35, no.15, p.3065-3070.

Peripheral vocal mechanisms in birds: Are songbirds special? Suthers, Roderick A. Netherlands Journal of Zoology; June 2001; v.51, no.2, p.217-242.

Persistent organochlorine levels in six prey species of the gyrfalcon Falco rusticolus in Iceland. Olafsdottir, K.; Petersen, A. E.; Magnusdottir, E. V.; Bjornsson, T.; Johannesson, T. Environmental Pollution; 2001; v.112, no.2, p.245-251.

Persistent organochlorine pesticides detected in blood and tissue samples of vultures from different localities in South Africa. van Wyk, Erika; Bouwman, Henk; van der Bank, Herman; Verdoorn, Gerhard H.; Hofmann, Dieter. Comparative Biochemistry and Physiology Part C Toxicology & Pharmacology; July 2001; v.129C, no.3, p.243-264.

Persistent organochlorine pollutants in eggs of colonial waterbirds from Galveston Bay and East Texas, USA. Frank, Donell S.; Mora, Miguel A.; Sericano, Jose L.; Blankenship, Alan L.; Kannan, Kurunthachalam; Giesy, John P. Environmental Toxicology and Chemistry; March 2001; v.20, no.3, p.608-617.

Pet-assisted therapy in the nursing home setting: Potential for zoonosis. Guay, David R. P. American Journal of Infection Control; June 2001; v.29, no.3, p.178-186.

Phenology and biometrics of the migratory reed bunting (Emberiza schoeniclus) in Israel. Meyrom, Kobi; Yosef, Reuven; Tryjanowski, Piotr. Israel Journal of Zoology; 2001; v.47, no.2, p.161-165.

Phenology and length of stay of transient and wintering Western Sandpipers at Estero Punta Banda, Mexico. Fernandez, Guillermo; de la Cueva, Horacio; Warnock, Nils. Journal of Field Ornithology; Autumn 2001; v.72, no.4, p.509-520.

Phenology: Responses to a warming world. Penuelas, Josep; Filella, Iolanda. Science (Washington D C); 26 October 2001; v.294, no.5543, p.793-795.

Phenotypes including immunocompetence in scavenging local chicken ecotypes in Tanzania. Msoffe, P. L. M.; Minga, U. M.; Olsen, J. E.; Yongolo, M. G. S.; Juul-Madsen, H. R.; Gwakisa, P. S.; Mtambo, M. M. A. Tropical Animal Health and Production; July 2001; v.33, no.4, p.341-354.

Phenotypic assortative mating and within-pair sexual dimorphism and its influence on breeding success and offspring quality in Magellanic penguins. Forero, M. G.; Tella, J. L.; Donazar, J. A.; Blanco, G.; Bertellotti, M.; Ceballos, O. Canadian Journal of Zoology; August 2001; v.79, no.8, p.1414-1422.

Phenotypic plasticity in the expression of sexually selected traits: Neglected components of variation. Griffith, Simon C.; Sheldon, Ben C. Animal Behaviour; May 2001; v.61, no.5, p.987-993.

Phenotypic selection on a heritable size trait revisited. Kruuk, Loeske E. B.; Merila, Juha; Sheldon, Ben C. American Naturalist; December 2001; v.158, no.6, p.557-571.

Phenotypic selection on a heritable size trait revisited. Kruuk, Loeske E. B.; Merila, Juha; Sheldon, Ben C. American Naturalist; December 2001; v.158, no.6, p.557-571.

Photoperiodic control of seasonality in birds. Dawson, Alistair; King, Verdun M.; Bentley, George E.; Ball, Gregory F. Journal of Biological Rhythms; August 2001; v.16, no.4, p.365-380.

Photoperiodic control of the concentration of luteinizing hormone, prolactin and testosterone in the male emu (Dromaius novaehollandiae), a bird that breeds on short days. Blache, D.; Talbot, R. T.; Blackberry, M. A.; Williams, K. M.; Martin, G. B.; Sharp, P. J. Journal of Neuroendocrinology; November 2001; v.13, no.11, p.998-1006.

Photoperiodic response to early hatching in a migratory bird species. Coppack, Timothy; Pulido, Francisco; Berthold, Peter. Oecologia (Berlin); July 2001; v.128, no.2, p.181-186.

Photoperiod-induced testicular apoptosis in European starlings (Sturnus vulgaris). Young, Kelly A.; Ball, Gregory F.; Nelson, Randy J. Biology of Reproduction; February 2001; v.64, no.2, p.706-713.

Phylogenetic evidence for colour pattern convergence in toxic pitohuis: Mullerian mimicry in birds? Dumbacher, John P.; Fleischer, Robert C. Proceedings of the Royal Society Biological Sciences Series B; 7 October 2001; v.268, no.1480, p.1971-1976.

Phylogenetic evidence for colour pattern convergence in toxic pitohuis: Mullerian mimicry in birds? Dumbacher, John P.; Fleischer, Robert C. Proceedings of the Royal Society Biological Sciences Series B; 7 October 2001; v.268, no.1480, p.1971-1976.

Phylogenetic relationships in bearded manakins (Pipridae: Manacus) indicate that male plumage color is a misleading taxonomic marker. Brumfield, Robb T.; Braun, Michael J. Condor; May 2001; v.103, no.2, p.248-258.

Phylogeny and system of the Cheyletidae (Acari: Prostigmata) with special reference to their host-parasite associations. Bochkov, Andre V.; Fain, Alex. Bulletin de l'Institut Royal des Sciences Naturelles de Belgique Entomologie; 2001; v.71, p.5-36.

Phylogeny and systematics of ground rollers (Brachypteraciidae) of Madagascar. Kirchman, Jeremy J.; Hackett, Shannon J.; Goodman, Steven M.; Bates, John M. Auk; October 2001; v.118, no.4, p.849-863.

Phylogeographic relationships of Ixodes uriae (Acari: Ixodidae) and their significance to transequatorial dispersal of Borrelia garinii. Gylfe, Asa; Yabuki, Mihe; Drotz, Marcus; Bergstrom, Sven; Fukunaga, Masahito; Olsen, Bjorn. Hereditas (Lund); October 2001; v.134, no.3, p.195-199.

Phylogeography and conservation genetics of the lesser white-fronted goose (Anser erythropus). Ruokonen, Minna. Acta Universitatis Ouluensis A Scientiae Rerum Naturalium; 2001; no.360, p.1-54.

Phylogeography and genetic characteristics of a putative secondary-contact zone of the loggerhead shrike in central and eastern North America. Vallianatos, M.; Lougheed, S. C.; Boag, P. T. Canadian Journal of Zoology; December 2001; v.79, no.12, p.2221-2227.

Phylogeography of a Palaearctic sedentary passerine, the willow tit (Parus montanus). Kvist, L.; Martens, J.; Ahola, A.; Orell, M. Journal of Evolutionary Biology; November 2001; v.14, no.6, p.930-941.

Phylogeography of a Palaearctic sedentary passerine, the willow tit (Parus montanus). Kvist, L.; Martens, J.; Ahola, A.; Orell, M. Journal of Evolutionary Biology; November 2001; v.14, no.6, p.930-941.

Phylogeography of crossbills, bullfinches, grosbeaks, and rose finches. Arnaiz-Villena, A.; Guillen, J.; Ruiz-del-Valle, V.; Lowy, E.; Zamora, J.; Varela, P.; Stefani, D.; Allende,L. M. CMLS Cellular and Molecular Life Sciences; July 2001; v.58, no.8, p.1159-1166.

Physical characteristics and chemical composition of Greater Rhea (Rhea americana) eggs from wild and captive populations. Navarro, J. L.; Lopez, M. L.; Maestri, D. M.; Labuckas, D. O. British Poultry Science; December 2001; v.42, no.5, p.658-662.

Physiological and biochemical correlates of brood size and energy expenditure in tree swallows. Burness, Gary P.; Ydenberg, Ronald C.; Hochachka, Peter W. Journal of Experimental Biology; April 2001; v.204, no.8, p.1491-1501.

Physiological and haematological consequences of a novel parasite on the red-rumped swallow Hirundo daurica. Merino, Santiago; Martinez, Javier; Moller, Anders Pape; Barbosa, Andres; de Lope, Florentino; Rodriguez-Caabeiro, Filomena.

Physiological concentrations of melatonin and corticosterone affect phagocytosis and oxidative metabolism of ring dove heterophils. Rodriguez, A. B.; Terron, M. P.; Duran, J.; Ortega, E.; Barriga, C. Journal of Pineal Research; August 2001; v.31, no.1, p.31-38.

Physiological ecology of Mediterranean Blue Tits (Parus caeruleus): I. A test for inter-population differences in resting metabolic rate and thermal conductance as a response to hot climates. Thomas, Donald W.; Blondel, Jacques; Perret, Philippe. Zoology (Jena); 2001; v.104, no.1, p.33-40.

Pied Currawongs and the decline of native birds. Bayly, Karen L.; Blumstein, Daniel T. Emu; 2001; v.101, no.3, p.199-204.

Pied Currawongs and the decline of native birds. Bayly, Karen L.; Blumstein, Daniel T. Emu; 2001; v.101, no.3, p.199-204.

Pigeons (Columbia livia) learn to link numerosities with symbols. Xia, Li; Emmerton, Jacky; Siemann, Martina; Delius, Juan D. Journal of Comparative Psychology; March 2001; v.115, no.1, p.83-91.

Pigeons' discrimination of color proportion in computer-generated visual displays. Emmerton, Jacky. Animal Learning & Behavior; February 2001; v.29, no.1, p.21-35.

Pigeons encode relative geometry. Kelly, Debbie M.; Spetch, Marcia L. Journal of Experimental Psychology Animal Behavior Processes; October 2001; v.27, no.4, p.417-422.

Pileated Woodpecker scavenges on a carcass in Missouri. Servin, Jorge; Lindsey, Susan Lyndaker; Loiselle, Bette A. Wilson Bulletin; June 2001; v.113, no.2, p.249-250.

Pilot Whale apparently playing with moulting Common Eiders. Heubeck, Martin. Scottish Birds; June 2001; v.22, no.1, p.62.

Planned flooding and Colorado River riparian trade-offs downstream from Glen Canyon Dam, Arizona. Stevens, Lawrence E.; Ayers, Tina J.; Bennett, Jeffery B.; Christensen, Kerry; Kearsley, Michael J. C.; Meretsky, Vicky J.; Phillips, Arthur M., III; Parnell, Roderic A.; Spence, John; Sogge, Mark K.; Springer, Abraham E.; Wegner, David L. Ecological Applications; June 2001; v.11, no.3, p.701-710.

Plants, insects and birds in semi-natural pastures in relation to local habitat and landscape factors. Soderstrom, Bo; Svensson, Birgitta; Vessby, Karolina; Glimskar, Anders. Biodiversity and Conservation; November 2001; v.10, no.11, p.1839-1863.

Plasma corticosterone in nestling American kestrels: Effects of age, handling stress, yolk androgens, and body condition. Sockman, Keith W.; Schwabl, Hubert. General and Comparative Endocrinology; May 2001; v.122, no.2, p.205-212.

Plasma thyroid hormones and growth hormone in embryonic and growing emus (Dromaius novaehollandiae). Blache, D.; Blackberry, M. A.; Van Cleeff, J.; Martin, G. B. Reproduction Fertility and Development; 2001; v.13, no.2-3, p.125-132.

Plumage and mitochondrial DNA haplotype variation across a moving hybrid zone. Rohwer, Sievert; Bermingham, Eldredge; Wood, Christopher. Evolution; February 2001; v.55, no.2, p.405-422.

Plumage color as a composite trait: Developmental and functional integration of sexual ornamentation. Badyaev, Alexander V.; Hill, Geoffrey E.; Dunn, Peter O.; Glen, John C. American Naturalist; September 2001; v.158, no.3, p.221-235.

Plumage coloration and reproductive success in male Chestnut-sided Warblers. King, David I.; Degraaf, Richard M.; Griffin, Curtice R. Wilson Bulletin; June 2001; v.113, no.2, p.239-242.

Pollination and predation limit fruit set in a shrub, Bourreria succulenta (Boraginaceae), after hurricanes on San Salvador Island, Bahamas. Rathcke, Beverly J. Biotropica; June 2001; v.33, no.2, p.330-338.

Polychlorinated biphenyl contamination and minisatellite DNA mutation rates of tree swallows. Stapleton, Mary; Dunn, Peter O.; McCarty, John; Secord, Anne; Whittingham, Linda A. Environmental Toxicology and Chemistry; October 2001; v.20, no.10, p.2263-2267.

Polychlorinated biphenyl contamination and minisatellite DNA mutation rates of tree swallows. Stapleton, Mary; Dunn, Peter O.; McCarty, John; Secord, Anne; Whittingham, Linda A. Environmental Toxicology and Chemistry; October 2001; v.20, no.10, p.2263-2267.

Polychlorinated dibenzo-p-dioxins, dibenzofurans, and polychlorinated biphenyls in human tissues, meat, fish, and wildlife samplesfrom India. Kumar, Kurunthachalam Senthil; Kannan, Kurunthachalam; Paramasivan, Odathurai N.; Sundaram, Vellakovil P. Shanmuga;Nakanishi, Junko; Masunaga, Shigeki. Environmental Science & Technology; September 1 2001; v.35, no.17, p.3448-3455.

Polychlorinated naphthalenes, -biphenyls, -dibenzo-p-dioxins, and -dibenzofurans in double-crested cormorants and herring gulls from Michigan waters of the Great Lakes. Kannan, Kurunthachalam; Hilscherova, Klara; Imagawa, Takashi; Yamashita, Nobuyoshi; Williams, Lisa L.; Giesy, John P. Environmental Science & Technology; February 1 2001; v.35, no.3, p.441-447.

Polycyclic aromatic hydrocarbons, aliphatic hydrocarbons, trace elements, and monooxygenase activity in birds nesting on the North Platte River, Casper, Wyoming, USA. Custer, Thomas W.; Custer, Christine M.; Dickerson, Kimberly; Allen, Kenneth; Melancon, Mark J.; Schmidt, Larry J. Environmental Toxicology and Chemistry; March 2001; v.20, no.3, p.624-631.

Polygyny in Canada Geese: An unusual example of nest sharing. Checkett, J. Michael; Coluccy, John M.; Drobney, Ronald D. Wilson Bulletin; March 2001; v.113, no.1, p.109-110.

Polygyny in the dusky warbler, Phylloscopus fuscatus: The importance of female qualities. Forstmeier, Wolfgang; Kuijper, Dries P. J.; Leisler, Bernd. Animal Behaviour; December 2001; v.62, no.6, p.1097-1108.

Polygyny in the dusky warbler, Phylloscopus fuscatus: The importance of female qualities. Forstmeier, Wolfgang; Kuijper, Dries P. J.; Leisler, Bernd. Animal Behaviour; December 2001; v.62, no.6, p.1097-1108.

Polymorphic microsatellite loci for assigning parentage in least flycatchers (Empidonax minimus). Tarof, S. A.; Ratcliffe, L. M.; Boag, P. T. Molecular Ecology Notes; September 2001; v.1, no.3, p.146-148.

Polymorphic microsatellites developed by cross-species amplifications in common pheasant breeds. Baratti, M.; Alberti, A.; Groenen, M.; Veenendaal, T.; Fulgheri, F. D. Animal Genetics; August 2001; v.32, no.4, p.222-225.

Population biology of eyeflukes in fish from a large fluvial ecosystem: The importance of gulls and habitat characteristics. Marcogliese, D. J.; Compagna, S.; Bergeron, E.; McLaughlin, J. D. Canadian Journal of Zoology; June 2001; v.79, no.6, p.1102-1113.

Population density and breeding ecology of the House Martin Delichon urbica in Pomerania (NW Poland). Gorska, Ewa. Acta Ornithologica (Warsaw); Summer 2001; v.36, no.1, p.79-84.

Population density and breeding ecology of the House Martin Delichon urbica in Pomerania (NW Poland). Gorska, Ewa. Acta Ornithologica (Warsaw); Summer 2001; v.36, no.1, p.79-84.

Population density and geographical range size in the introduced and native passerine faunas of New Zealand. Blackburn, T. M.; Gaston, K. J.; Duncan, R. P. Diversity and Distributions; September 2001; v.7, no.5, p.209-221.

Population density and habitat associations of restricted-range bird species at Ruhija, Bwindi Impenetrable Forest, Uganda. Shaw, Philip; Shewry, Michael. Bird Conservation International; September 2001; v.11, no.3, p.161-174.

Population density and home range estimates for the Eastern Bristlebird at Jervis Bay, south-eastern Australia. Baker, Jack. Corella; September 2001; v.25, no.3, p.62-67.

Population dynamics of the Cattle Egret (Ardea ibis) in south-east Queensland: A 20-year study. McKilligan, Neil. Emu; 2001; v.101, no.1, p.1-5.

Population dynamics, diet and aspects of the biology of feral cats and foxes in arid South Australia. Read, John; Bowen, Zoe. Wildlife Research; 2001; v.28, no.2, p.195-203.

Population dynamics, recruitment, individual quality and reproductive strategies in Common Terns Sterna hirundo marked with transponders. Becker, Peter H.; Wendeln, Helmut; Gonzalez-Solis, Jacob. Ardea; 2001; v.89, no.1 Special Issue, p.241-252.

Population dynamics, recruitment, individual quality and reproductive strategies in Common Terns Sterna hirundo marked with transponders. Becker, Peter H.; Wendeln, Helmut; Gonzalez-Solis, Jacob. Ardea; 2001; v.89, no.1 Special Issue, p.241-252.

Population estimates of Yellow-eyed Penguins, Megadyptes antipodes, on Campbell Island, 1987-98. Moore, Peter J.; Fletcher, David; Amey, Jacinda. Emu; 2001; v.101, no.3, p.225-236.

Population estimates of Yellow-eyed Penguins, Megadyptes antipodes, on Campbell Island, 1987-98. Moore, Peter J.; Fletcher, David; Amey, Jacinda. Emu; 2001; v.101, no.3, p.225-236.

Population fluctuations of birds (Aves) in Acacia savanna in Swaziland. Monadjem, A. Durban Museum Novitates; 2001; no.26, p.6-9.

Population genetic structure and vocal dialects in an amazon parrot. Wright, Timothy F.; Wilkinson, Gerald S. Proceedings of the Royal Society Biological Sciences Series B; 22 March 2001; v.268, no.1467, p.609-616.

Population genetics of southeastern wood ducks. Ransom, Dean, Jr.; Honeycutt, Rodney L.; Slack, R. Douglas. Journal of Wildlife Management; October 2001; v.65, no.4, p.745-754.

Population genetics of southeastern wood ducks. Ransom, Dean, Jr.; Honeycutt, Rodney L.; Slack, R. Douglas. Journal of Wildlife Management; October 2001; v.65, no.4, p.745-754.

Population size, survival, and movements of White-cheeked Pintails in eastern Puerto Rico. Collazo, Jaime A.; Bonilla-Martinez, Gilbert. Caribbean Journal of Science; December 2001; v.37, no.3-4, p.194-201.

Population sizes, status and habitat associations of forest birds in Chu Yang Sin Nature Reserve, Dak Lak Province, Vietnam. Hill, Mike; Eames, Jonathan C.; Trai, Le Trong; Cu, Nguyen. Bird Conservation International; March 2001; v.11, no.1, p.49-70.

Population status and breeding success of Osprey Pandion haliaetus in Sweden, 1971-1998. Odsjo, Tjelvar; Sondell, Jan. Vogelwelt; 2001; v.122, no.3-4, p.155-166.

Population status and breeding success of Osprey Pandion haliaetus in Sweden, 1971-1998. Odsjo, Tjelvar; Sondell, Jan. Vogelwelt; 2001; v.122, no.3-4, p.155-166.

Population status and distribution of Double-crested Cormorants wintering in the southeastern delta of Arkansas. Wooten, David E. Waterbirds; December 2001; v.24, no.3, p.446-449.

Population status and distribution of Double-crested Cormorants wintering in the southeastern delta of Arkansas. Wooten, David E. Waterbirds; December 2001; v.24, no.3, p.446-449.

Population status, breeding biology and conservation of the Tristan Albatross Diomedea (exulans) dabbenena.

Population structure and habitat use by overwintering neotropical migrants on a remote oceanic island. Murphy, Michael T.; Pierce, Aaron; Shoen, Jonathon; Murphy, Karmel L.; Campbell, Jason A.; Hamilton, Douglas A. Biological Conservation; December 2001; v.102, no.3, p.333-345.

Population trends, breeding success and diet composition of gentoo Pygoscelis papua, magellanic Spheniscus magellanicus and rockhopper Eudyptes chrysocome penguins in the Falkland Islands. Putz, Klemens; Ingham, Rebecca J.; Smith, Jeremy G.; Croxall, John P. Polar Biology; November 2001; v.24, no.11, p.793-807.

Populations dynamics of some ruminant and domestic birds ectoparasites in the Cap-Bon region (north of Tunisia). Dhaouadi, Souia; Cheniti, Tahar Lamine; Kilani, Mohamed. Bulletin de la Societe Zoologique de France; 2001; v.126, no.1-2, p.226.

Porphyrin levels in excreta of sea birds of the Chilean coasts as nondestructive biomarker of exposureto environmental pollutants. Casini, S.; Fossi, M. C.; Gavilan, J. F.; Barra, R.; Parra, O.; Leonzio, C.; Focardi, S. Archives of Environmental Contamination and Toxicology; July 2001; v.41, no.1, p.65-72.

Possible nest-site competition between Eastern Bluebirds and Carolina Chickadees. Wells, Lenny. Oriole; September-December 2001; v.66, no.3-4, p.52-54.

Possible postcranial pneumaticity in the last common ancestor of birds and crocodilians: Evidence

Possible range extension of the peninsular Brooks's flycatcher (Muscicapa poliogenys vernayi) in Andhra Pradesh. Taher, Humayun; Ramakrishnan, K. C. Journal of the Bombay Natural History Society; August 2001; v.98, no.2, p.282.

Possible release to the wild of the captive-bred crested ibis, Nipponia nippon. Xi, Y. M.; Fujihara, N. Journal of Applied Animal Research; June 2001; v.19, no.2, p.177-186.

Possible roles for corticosterone and critical size in the fledging of nestling pied flycatchers. Kern, Michael; Bacon, Wayne; Long, David; Cowie, Richard J. Physiological and Biochemical Zoology; September-October 2001; v.74, no.5, p.651-659.

Post-fledging broods of migratory Harlequin Ducks accompany females to wintering areas. Regehr, Heidi M.; Smith, Cyndi M.; Arquilla, Brian; Cooke, Fred. Condor; May 2001; v.103, no.2, p.408-412.

Postfledging creche behavior in the European shag. Velando, Alberto. Journal of Ethology; 2001; v.19, no.2, p.121-127.

Postfledging dispersal in the endangered Lesser Kestrel Falco naumanni. Olea, Pedro P. Bird Study; March 2001; v.48, no.1, p.110-115.

Post-fledging dispersal of Burrowing Owls in Southwestern Idaho: Characterization of movements and use of satellite burrows. King, R. Andrew; Belthoff, James R. Condor; February 2001; v.103, no.1, p.118-126.

Postlearning consolidation of birdsong: Stabilizing effects of age and anterior forebrain lesions. Brainard, Michael S.; Doupe, Allison J. Journal of Neuroscience; April 1 2001; v.21, no.7, p.2501-2517.

Post-moult body weight and production performance of commercial layers induced to moult under various nutritional regimes. Akram, M.; Mushtaq-Ul-Hassan, M.; Farid, S.; Dar, B.; Raza, N. M.; Khanum, S. Acta Veterinaria (Belgrade); 2001; v.51, no.2-3, p.163-170.

Postnatal development of the Violet Sabrewing in Costa Rica. Marin, Manuel. Wilson Bulletin; March 2001; v.113, no.1, p.110-114.

Potential flight range of Snow Buntings Plectrophenax nivalis occurring in the Azores islands in late March: A first analysis. Bolton, Mark; Medeiros, Renata; Fraga, Helder. Arquipelago Boletim da Universidade dos Acores Ciencias Biologicas e Marinhas; 2001; no.18A, p.93-95.

Potential negative effects of collisions with transmission lines on a Bonelli's Eagle population. Manosa, Santi; Real, Joan. Journal of Raptor Research; September 2001; v.35, no.3, p.247-252.

Potential negative effects of collisions with transmission lines on a Bonelli's Eagle population. Manosa, Santi; Real, Joan. Journal of Raptor Research; September 2001; v.35, no.3, p.247-252.

Power poles assist range expansion of Ospreys in Saskatchewan. Houston, C. Stuart; Scott, Frank. Blue Jay; December 2001; v.59, no.4, p.182-188.

Pox and plumage coloration in the House Finch: A critique of Zahn & Rothstein. Hill, Geoffrey E. Auk; January 2001; v.118, no.1, p.256-260.

"Practice" foraging by a sub-adult Great Blue Heron. Davis, William E., Jr. Florida Field Naturalist; September 2001; v.29, no.3, p.88-89.

Precocial nest departure in the Alcidae. Ydenberg, R. C. Evolutionary Ecology Research; February 2001; v.3, no.2, p.179-190.

Predation and ring-necked pheasant population dynamics. Riley, Terry Z.; Schulz, John H. Wildlife Society Bulletin; Spring 2001; v.29, no.1, p.33-38.

Predation and the management of prairie grouse. Schroeder, Michael A.; Baydack, Richard K. Wildlife Society Bulletin; Spring 2001; v.29, no.1, p.24-32.

Predation by bird (White-breasted Woodswallow, Artamus leucorynchus) on butterfly (Papilio species) in Kuching, Sarawak (Borneo). Tennent, W. John. Entomologist's Record and Journal of Variation; July-August 2001; v.113, no.4, p.152.

Predation by leopard Panthera pardus in Majhatal Harsang Wildlife Sanctuary, Western Himalaya. Mukherjee, Shomita; Mishra, Charudutt. Journal of the Bombay Natural History Society; August 2001; v.98, no.2, p.267-268.

Predation effects on forest grouse recruitment. Hewitt, David G.; Keppie, Daniel M.; Stauffer, Dean F. Wildlife Society Bulletin; Spring 2001; v.29, no.1, p.16-23.

Predation on artificial nests in small grassland patches in East-Central Illinois. Newton, Julianne L.; Heske, Edward J. American Midland Naturalist; January 2001; v.145, no.1, p.29-38.

Predation on Mexican free-tailed bats by Peregrine Falcons and Red-tailed Hawks. Lee, Ya-Fu; Kuo, Yen-Min. Journal of Raptor Research; June 2001; v.35, no.2, p.115-123.

Predation on Pacific herring (Clupea pallasi) spawn by birds in Prince William Sound, Alaska. Bishop, Mary A.; Green, S. Patrick. Fisheries Oceanography; 2001; v.10, no.Supplement 1, p.149-158.

Predation on reptiles and birds by the common buzzard, Buteo buteo, in relation to changes in its main prey, voles. Selas, Vidar. Canadian Journal of Zoology; November 2001; v.79, no.11, p.2086-2093.

Predation on waterfowl in arctic tundra and prairie breeding areas: A review. Sovada, Marsha A.; Anthony, R. Michael; Batt, Bruce D. J. Wildlife Society Bulletin; Spring 2001; v.29, no.1, p.6-15.

Predation on yellow-bellied marmots (Marmota flaviventris). Van Vuren, Dirk H. American Midland Naturalist; January 2001; v.145, no.1, p.94-100.

Predator abundance and predation of artificial nests in natural and anthropogenic coniferous forest edges in southeast Alaska. De Santo, Toni L.; Willson, Mary F. Journal of Field Ornithology; Winter 2001; v.72, no.1, p.136-149.

Predator experience on cryptic prey affects the survival of conspicuous aposematic prey. Lindstrom, Leena; Alatalo, Rauno V.; Lyytinen, Anne; Mappes, Johanna. Proceedings of the Royal Society Biological Sciences Series B; 22 February 2001; v.268, no.1465, p.357-361.

Predator responses to similarity and dispersion of artificial nest sites: Implications for the structure of boreal forest songbird

Predator versus prey: On aerial hunting and escape strategies in birds. Hedenstrom, Anders; Rosen, Mikael. Behavioral Ecology; Mar.-Apr. 2001; v.12, no.2, p.150-156.

Predators as stressors? Physiological and reproductive consequences of predation risk in tropical stonechats (Saxicola torquata axillaris). Scheuerlein, Alexander; Van't Hof, Thomas J.; Gwinner, Eberhard. Proceedings of the Royal Society Biological Sciences Series B; 7 August 2001; v.268, no.1476, p.1575-1582.

Predatory attack on bats by barn owl Tyto alba and shikra Accipiter badius in Tamil Nadu state, South India. Agoramoorthy, G.; Hsu, Minna J. Journal of the Bombay Natural History Society; April 2001; v.98, no.1, p.107-108.

Predatory behavior of crowned hawk-eagles (Stephanoaetus coronatus) in Kibale National Park,Uganda. Mitani, John C.; Sanders, William J.; Lwanga, Jeremiah S.; Windfelder, Tammy L. Behavioral Ecology and Sociobiology; January 2001; v.49, no.2-3, p.187-195.

Predicting invaders. Kolar, Cynthia S.; Lodge, David M. Trends in Ecology & Evolution; October 2001; v.16, no.10, p.546.

Predicting invaders. Sol, Daniel. Trends in Ecology & Evolution; October 2001; v.16, no.10, p.544.

Predicting population responses to resource management. Bradbury, Richard B.; Payne, Robert J. H.; Wilson, Jeremy D.; Krebs, John R. Trends in Ecology & Evolution; August 2001; v.16, no.8, p.440-445.

Predicting shorebird mortality and population size under different regimes of shellfishery management. Stillman, R. A.; Goss-Custard, J. D.; West, A. D.; Durell, S. E. A. le V. Dit; McGrorty, S.; Caldow, R. W. G.; Norris, K. J.; Johnstone, I. G.; Ens, B. J.; van der Meer, J.; Triplet, P. Journal of Applied Ecology; August 2001; v.38, no.4, p.857-868.

Predicting species' geographic distributions based on ecological niche modeling. Peterson, A. Townsend. Condor; August 2001; v.103, no.3, p.599-605.

Prediction in complex communities: Analysis of empirically derived Markov models. Wootton, J. Timothy. Ecology (Washington D C); February 2001; v.82, no.2, p.580-598.

Preferential nectar robbing of flowers with long corollas: Experimental studies of two hummingbird species visiting three plant species. Lara, Carlos; Ornelas, Juan Francisco. Oecologia (Berlin); July 2001; v.128, no.2, p.263-273.

Prefledging energy requirements in shorebirds: Energetic implications of self-feeding precocial development. Schekkerman, Hans; Visser, G. Henk. Auk; October 2001; v.118, no.4, p.944-957.

Prelaying exodus of Cory's Shearwaters (Calonectris diomedea borealis) on Selvagem Grande. Jouanin, Christian; Roux, Francis; Mougin, Jean-Louis; Stahl, Jean-Claude. Journal fuer Ornithologie; April 2001; v.142, no.2, p.212-217.

Preliminary observations on displays and postures in the Oriental magpie robin Copsychus saularis. Kumar, Anil; Bhatt, Dinesh. Journal of the Bombay Natural History Society; April 2001; v.98, no.1, p.5-11.

Preliminary survey of ticks (Acari: Ixodidae) parasitizing wild turkeys (Aves: Phasianidae) in eastern Kansas. Mock, Donald E.; Applegate, Roger D.; Fox, Lloyd B. Journal of Medical Entomology; January 2001; v.38, no.1, p.118-121.

Prescribed burning to restore mixed-oak communities in southern Ohio: Effects on breeding-bird populations. Artman, Vanessa L.; Sutherland, Elaine K.; Downhower, Jerry F. Conservation Biology; October 2001; v.15, no.5, p.1423-1434.

Pretty patterns but a simple strategy: Predator-prey interactions between juvenile herring and Atlantic puffins observed with multibeam sonar. Axelsen, Bjorn Erik; Anker-Nilssen, Tycho; Fossum, Petter; Kvamme, Cecilie; Nottestad, Leif. Canadian Journal of Zoology; September 2001; v.79, no.9, p.1586-1596.

Prevalence and intensity of Haemoproteus columbae in three species of wild doves from Brazil. Adriano, Edson A.; Cordeiro, Nelson S. Memorias do Instituto Oswaldo Cruz; February 2001; v.96, no.2, p.175-178.

Prevalence of Sindbis virus neutralizing antibodies among Swedish passerines indicates that thrushes are the main amplifying hosts. Lundstrom, Jan O.; Lindstrom, Karin M.; Olsen, Bjorn; Dufva, Reija; Krakower, Douglas S. Journal of Medical Entomology; March 2001; v.38, no.2, p.289-297.

Prey and prey-size selection by the short-toed eagle (Circaetus gallicus) during the breeding season in Granada (south-eastern Spain). Gil, Jose M.; Pleguezuelos, Juan M. Journal of Zoology (London); September 2001; v.255, no.1, p.131-137.

Prey and reproduction in a metapopulation decline among Swainson's Hawks, Buteo swainsoni. Schmutz, Josef K.; Houston, C. Stuart; Barry, Samuel J. Canadian Field-Naturalist; April-June 2001; v.115, no.2, p.257-273.

Prey availability influences habitat tolerance: An explanation for the rarity of peregrine falcons in the tropics. Jenkins, Andrew R.; Hockey, Philip A. R. Ecography; June 2001; v.24, no.3, p.359-367.

Prey consumption of Australasian gannets (Morus serrator) breeding in Port Phillip Bay, southeast Australia, and potential overlap with commercial fisheries. Bunce, Ashley. ICES Journal of Marine Science; August 2001; v.58, no.4, p.904-915.

Prey depletion by the foraging of the Eurasian treecreeper, Certhia familiaris, on tree-trunk arthropods. Jantti, Ari; Aho, Teija; Hakkarainen, Harri; Kuitunen, Markku; Suhonen, Jukka. Oecologia (Berlin); August 2001; v.128, no.4, p.488-491.

Prey groups in the pellets of the barn owl Tyto alba (Scopoli) in the Nigerian savanna. Lekunze, L. M.; Ezealor, A. U.; Aken'Ova, T. African Journal of Ecology; March 2001; v.39, no.1, p.38-44.

Prey species attacked and captured by Eurasian Sparrowhawks outside the breeding season. Dickson, R. C. Scottish Birds; June 2001; v.22, no.1, p.62-63.

Primary sex ratio bias in an endangered cooperatively breeding bird, the black-eared miner, and its implications for conservation. Ewen, John G.; Clarke, Rohan H.; Moysey, Emma; Boulton, Rebecca L.; Crozier, Ross H.; Clarke, Michael F. Biological Conservation; October 2001; v.101, no.2, p.137-145.

Primate colour predicts social status and aggressive outcome. Gerald, Melissa S. Animal Behaviour; March 2001; v.61, no.3, p.559-566.

Primolius Bonaparte, 1857 has priority over Propyrrhura Ribeiro, 1920. Penhallurick, John. Bulletin of the British Ornithologists' Club; March 2001; v.121, no.1, p.38-39.

Priority areas for the conservation of subtropical indigenous forest in southern Africa: A case study from KwaZulu-Natal. Eeley, Harriet A. C.; Lawes, Michael J.; Reyers, Belinda. Biodiversity and Conservation; August 2001; v.10, no.8, p.1221-1246.

Probability of survival and breeding for juvenile female canvasbacks. Anderson, Michael G.; Lindberg, Mark S.; Emery, Robert B. Journal of Wildlife Management; July 2001; v.65, no.3, p.385-397.

Probable replacement clutches by Booted Eagles (Hieraaetus pennatus) in the Tietar River valley of central Spain. Garcia Dios, Ignacio S. Journal of Raptor Research; March 2001; v.35, no.1, p.75.

Problem solving and neophobia in a columbiform-passeriform assemblage in Barbados. Webster, Sandra J.; Lefebvre, Louis. Animal Behaviour; July 2001; v.62, no.1, p.23-32.

Proceedings of the Royal Society Biological Sciences Series B; 22 September 2001; v.268, no.1479, p.1915-1919.

Proceedings of the Royal Society Biological Sciences Series B; 22 September 2001; v.268, no.1479, p.1925-1929.

Producer-scrounger games in a spatially explicit world: Tactic use influences flock geometry of spice finches. Flynn, Robyn E.; Giraldeau, Luc-Alain. Ethology; March 2001; v.107, no.3, p.249-257.

Production traits in White Leghorn strains. Prabhakaran, K. B.; Jalaludeen, A.; Unni, A. K. K.; Peethambaran, P. A. Indian Journal of Animal Sciences; August 2001; v.71, no.8, p.810-811.

Productivity and survival within 2 declining populations of brown teal (Anas chlorotis). Williams, Murray. Notornis; December 2001; v.48, no.4, p.187-195.

Productivity of early successional shrubland birds in clearcuts and groupcuts in an eastern deciduous forest. King, David I.; Degraaf, Richard M.; Griffin, Curtice R. Journal of Wildlife Management; April 2001; v.65, no.2, p.345-350.

Professor J. Michael (Mike) Cullen 1927-2001. Dann, Peter. Emu; 2001; v.101, no.3, p.269-270.

Progress toward colonial waterbird population targets in Hamilton Harbour (1998-2000). Morris, Ralph D.; Pekarik, Cynthia; Weseloh, D. V. Chip; Quinn, James S. Ontario Birds; April 2001; v.19, no.1, p.12-25.

Projected effects of climate change on patterns of vertebrate and tree species richness in the conterminous United States. Currie, David J. Ecosystems; April 2001; v.4, no.3, p.216-225.

Projecting the bird community response resulting from the adoption of shelterbelt agroforestry practices in Eastern Nebraska. Pierce, R. A.; Farrand, D. T.; Kurtz, W. B. Agroforestry Systems; 2001; v.53, no.3, p.333-350.

Projections of the oval nucleus of the hyperstriatum ventrale in the budgerigar: Relationships with the auditory system. Brauth, Steven E.; Liang, Wenru; Roberts, Todd F. Journal of Comparative Neurology; April 16 2001; v.432, no.4, p.481-511.

Propagule size and the relative success of exotic ungulate and bird introductions to New Zealand. Forsyth, David M.; Duncan, Richard P. American Naturalist; June 2001; v.157, no.6, p.583-595.

Protein fingerprinting: A new technique reveals extensive conspecific brood parasitism. Andersson, Malte; Ahlund, Matti. Ecology (Washington D C); May 2001; v.82, no.5, p.1433-1442.

Protein requirements of a specialized frugivore, Pesquet's Parrot (Psittrichas fulgidus). Pryor, Gregory S.; Levey, Douglas J.; Dierenfeld, Ellen S. Auk; October 2001; v.118, no.4, p.1080-1088.

Protein requirements of rainbow lorikeets, Trichoglossus haematodus. Frankel, T. L.; Avram, D. Australian Journal of Zoology; 2001; v.49, no.4, p.435-443.

Protein requirements of rainbow lorikeets, Trichoglossus haematodus. Frankel, T. L.; Avram, D. Australian Journal of Zoology; 2001; v.49, no.4, p.435-443.

Prothonotary warbler in Winnipeg, Manitoba. Underwood, Robyn M.; Underwood, Todd J. Blue Jay; December 2001; v.59, no.4, p.193-195.

Provenance and sex ratio of Black-browed Albatross, Thalassarche melanophrys, breeding on Campbell Island, New Zealand. Moore, Peter J.; Burg, Theresa M.; Taylor, Graeme A.; Millar, Craig D. Emu; 2001; v.101, no.4, p.329-334.

Provisioning rate and attendance patterns of Wandering Albatrosses at Bird Island, South Georgia. Berrow, Simon D.; Croxall, John P. Condor; May 2001; v.103, no.2, p.230-239.

Psittopsylla mexicana, a new genus and species of bird flea from Chihuahua, Mexico (Siphonaptera: Ceratophyllidae: Ceratophyllinae). Lewis, Robert E.; Stone, Elizabeth. Journal of the New York Entomological Society; Fall-Winter 2001; v.109, no.3-4, p.360-366.

Ptilochronology reveals differences in condition of captive White-throated Sparrows. Jenkins, Kendell D.; Hawley, Dana M.; Farabaugh, Christopher S.; Cristol, Daniel A. Condor; August 2001; v.103, no.3, p.579-586.

Pulmonary histopathology in ring-billed gulls (Larus delawarensis) from colonies near steel mills and in rural areas. Yauk, C. L.; Smits, J. E.; Quinn, J. S.; Bishop, C. A. Bulletin of Environmental Contamination and Toxicology; May 2001; v.66, no.5, p.563-569.

Pulmonary surfactant in birds: Coping with surface tension in a tubular lung. Bernhard, Wolfgang; Gebert, Andreas; Vieten, Gertrud; Rau, Gunnar A.; Hohlfeld, Jens M.; Postle, Anthony D.; Freihorst, Joachim. American Journal of Physiology; July 2001; v.281, no.1 Part 2, p.R327-R337.

pulpwood and sawlog forests in South Africa. Malan, Gerard; Robinson, E. Robbie. Environmental Management; August 2001; v.28, no.2, p.195-205.

Purple Martins attracted to grasswood. Parent, Gerald J. Blue Jay; December 2001; v.59, no.4, p.195-199.

Puzzling elevation of blood lead levels among consumers of freshwater sportfish. Kosatsky, Tom; Przybysz, Raymond; Weber, Jean-Philippe; Kearney, Jill. Archives of Environmental Health; March-April 2001; v.56, no.2, p.111-116.

Pygmy Nuthatch: Sitta pygmaea. Kingery, Hugh E.; Ghalambor, Cameron K. Birds of North America; 2001; no.567, p.1-31.

Pyrazine odour makes visually conspicuous prey aversive. Lindstrom, Leena; Rowe, Candy; Guilford, Tim. Proceedings of the Royal Society Biological Sciences Series B; 22 January 2001; v.268, no.1463, p.159-162.

Pyroglyphidae (Acari: Astigmata) in Poland. Distribution, biology, population ecology and epidemiology. Solarz, Krzysztof. Acta Zoologica Cracoviensia; 2001; v.44, no.4, p.435-528.

Pythons in the pergola: The ecology of 'nuisance' carpet pythons (Morelia spilota) from suburban habitats in south-eastern Queensland. Fearn, S.; Robinson, B.; Sambono, J.; Shine, R. Wildlife Research; 2001; v.28, no.6, p.573-579.

Quail and other short-lived birds. Ottinger, M. A. Experimental Gerontology; April 2001; v.36, no.4-6, p.859-868.

Quantifying maternal and dietary sources of 2,2'4,4',5,5'-hexachlorobiphenyl deposited in eggs of the ring dove (Streptopelia risoria). Drouillard, Ken G.; Norstrom, Ross J. Environmental Toxicology and Chemistry; March 2001; v.20, no.3, p.561-567.

Quantitative assessment of vocal development in the zebra finch using self-organizing neural networks. Janata, Petr. Journal of the Acoustical Society of America; November 2001; v.110, no.5 Part 1, p.2593-2603.

Quantitative estimate of importance of Amu-Daria valley as a flyway for birds migrating across the Karakum desert. Bulyuk, V. N.; Shamuradov, A. K. Journal of Arid Environments; February 2001; v.47, no.2, p.203-210.

Quantity versus quality in California Condor reintroduction: Reply to Beres and Starfield. Meretsky, Vicky; Snyder, Noel F. R.; Beissinger, Steven R.; Clendenen, David A.; Wiley, James W. Conservation Biology; October 2001; v.15, no.5, p.1449-1451.

Queuing for preferred territories: Delayed dispersal of Siberian jays. Ekman, Jan; Eggers, Sonke; Griesser, Michael; Tegelstrom, Hakan. Journal of Animal Ecology; March 2001; v.70, no.2, p.317-324.

Radar-based monitoring of Marbled Murrelets. Cooper, Brian A.; Raphael, Martin G.; Mack, Diane Evans. Condor; May 2001; v.103, no.2, p.219-229.

Radiation of pollination systems in Gladiolus (Iridaceae: Crocoideae) in southern Africa. Goldblatt, Peter; Manning, John C.; Bernhardt, Peter. Annals of the Missouri Botanical Garden; Fall 2001; v.88, no.4, p.713-734.

Radiocarbon dates from abandoned penguin colonies in the Antarctic Peninsula region. Emslie, Steven D. Antarctic Science; September 2001; v.13, no.3, p.289-295.

Radiocarbon dates from abandoned penguin colonies in the Antarctic Peninsula region. Emslie, Steven D. Antarctic Science; September 2001; v.13, no.3, p.289-295.

Radiographic morphology of the pelvic limb of falconiformes and its taxonomic implications. Harcourt-Brown, N. Netherlands Journal of Zoology; June 2001; v.51, no.2, p.155-178.

Radio-tagged Pacific Golden-Plovers: The Hawaii-Alaska link, spring destinations, and breeding season survival. Johnson, Oscar W.; Bennett, Alan J.; Alsworth, Leon; Bennett, Laurel A.; Johnson, Patricia M.; Morgart, John R.; Kienholz, Ronald J. Journal of Field Ornithology; Autumn 2001; v.72, no.4, p.537-546.

Rallicola deckeri n. sp. (Phthiraptera: Philopteridae) from Ruddy Woodcreepers Dendrocincla homochroa (Passeriformes: Furnariidae) collected in Campeche, Mexico. Adams, Richard J. Journal of Parasitology; February 2001; v.87, no.1, p.118-120.

Range extension of southern blackheaded munia Lonchura malacca malacca. Sharma, Satish Kumar

Rapid detection of West Nile virus from human clinical specimens, field-collected mosquitoes, and avian samples by a TaqMan reverse transcriptase-PCR assay.

Rapid second nesting by Anna's Hummingbird near its northern breeding limits. Scarfe, Ann; Finlay, J. Cam. Western Birds; September 15 2001; v.32, no.2, p.131-133.

Rapid tests of wheat nutritive value for growing chickens. Rose, S. P.; Tucker, L. A.; Kettlewell, P. S.; Collier, J. D. A. Journal of Cereal Science; September 2001; v.34, no.2, p.181-190.

Rapid upregulation of aromatase mRNA and protein following neural injury in the zebra finch (Taeniopygia guttata). Scott Peterson, R.; Saldanha, C. J.; Schlinger, B. A. Journal of Neuroendocrinology; April 2001; v.13, no.4, p.317-323.

Raptor electrocution on power lines: Current issues and outlook. Lehman, Robert N. Wildlife Society Bulletin; Fall 2001; v.29, no.3, p.804-813.

Raptor electrocution on power lines: Current issues and outlook. Lehman, Robert N. Wildlife Society Bulletin; Fall 2001; v.29, no.3, p.804-813.

Rare or unusual bird sightings for Beaverhill Lake, AB, 1996-2000. Flockhart, D. T. Tyler. Blue Jay; March 2001; v.59, no.1, p.33-40.

Rates of "peent" calls by American Woodcocks: The seven percent solution. Morris, Michael M. J. Ontario Birds; April 2001; v.19, no.1, p.8-11.

Reaction of Redshank Tringa totanus to colour-rings. Burton, Niall H. K. Ringing & Migration; May 2001; v.20, no.3, p.213-215.

Recapture rate and breeding frequencies of American Goldfinches wearing different colored leg bands. Watt, Doris J. Journal of Field Ornithology; Spring 2001; v.72, no.2, p.236-243.

Recent advances in grassland bird research: Where do we go from here? Vickery, Peter D.; Herkert, James R. Auk; January 2001; v.118, no.1, p.11-15.

Recent bird records from the Grand Canyon region, 1974-2000. LaRue, Charles T.; Dickson, Lara L.; Brown, Nikolle L.; Spence, John R.; Stevens, Lawrence E. Western Birds; September 15 2001; v.32, no.2, p.101-118.

Recent changes in the diet and breeding parameters of the Purple Heron Ardea purpurea in southern France. Barbraud, Christophe; Lepley, Michel; Lemoine, Vincent; Hafner, Heinz. Bird Study; November 2001; v.48, no.3, p.308-316.

Recent evidence of probable breeding of the Japanese Murrelet Synthliboramphus wumizusume on Tori-shima, Izu Islands,

Recent increase in wintering and breeding of cattle egret Bubulcus ibis population in Italy. Gustin, Marco; Arcamone, Emiliano; Corso, Andrea; Passarella, Menotti; Pizzari, Tommaso. Alauda; 2001; v.69, no.2, p.311-318.

Reciprocal subsidies: Dynamic interdependence between terrestrial and aquatic food webs. Nakano, Shigeru; Murakami, Masashi. Proceedings of the National Academy of Sciences of the United States of America; January 2 2001; v.98, no.1, p.166-170.

Reclaimed coal mine grasslands and their significance for Henslow's Sparrows in the American Midwest. Bajema, Robb A.; DeVault, Travis L.; Scott, Peter E.; Lima, Steven L. Auk; April 2001; v.118, no.2, p.422-431.

Recognition of group membership by voice in Mexican jays, Aphelocoma ultramarina. Hopp, Steven L.; Jablonski, Piotr; Brown, Jerram L. Animal Behaviour; August 2001; v.62, no.2, p.297-303.

Recognition of individual European Nightjars Caprimulgus europaeus from their song. Rebbeck, M.; Corrick, R.; Eaglestone, B.; Stainton, C. Ibis; July 2001; v.143, no.3, p.468-475.

Recolonization of the Flicker and other notes from Isla Guadalupe, Mexico. Sweet, Paul R.; Barrowclough, George F.; Klicka, John T.; Montanez-Godoy, Liliana; Escalante-Pliego, Patricia. Western Birds; 2001; v.32, no.1, p.71-80.

Reconstructing the evolution of birds on islands: 100 Years of research. Grant, Peter R. Oikos; March 2001; v.92, no.3, p.385-403.

Recovery from the northeastern Gulf of Mexico of a Band-rumped Storm-Petrel banded in the Azores. Woolfenden, Glen E.; Monteiro, Luis R.; Duncan, Robert A. Journal of Field Ornithology; Winter 2001; v.72, no.1, p.62-65.

Recovery of bird populations after clearfelling of tall open eucalypt forest in Western Australia. Williams, M. R.; Abbott, I.; Liddelow, G. L.; Vellios, C.; Wheeler, I. B.; Mellican, A. E. Journal of Applied Ecology; October 2001; v.38, no.5, p.910-920.

Recovery of the perch (Perca fluviatilis) in an acidified lake and subsequent responses in macroinvertebrates and the goldeneye (Bucephala clangula). Rask, M.; Poysa, H.; Nummi, P.; Karppinen, C. Water Air and Soil Pollution; August-September 2001; v.131, no.1-4 Part 3, p.1367-1372.

Recovery of the perch (Perca fluviatilis) in an acidified lake and subsequent responses in macroinvertebrates and the goldeneye (Bucephala clangula). Rask, M.; Poysa, H.; Nummi, P.; Karppinen, C. Water Air and Soil Pollution; August-September 2001; v.131, no.1-4 Part 3, p.1367-1372.

Red Knot: Calidris canutus. Harrington, Brian A. Birds of North America; 2001; no.563, p.1-31.

Red-cockaded woodpeckers in the Red Hills region: A GIS-based assessment. Cox, James A.; Baker, W. Wilson; Engstrom, R. Todd. Wildlife Society Bulletin; Winter 2001; v.29, no.4, p.1278-1288.

Red-winged crested cuckoo Clamator coromandus, an addition to the Avifauna of Anaimalai Hills (Western Ghats) of Tamil Nadu. Relton, A. Journal of the Bombay Natural History Society; April 2001; v.98, no.1, p.114.

Reduced bird occurrence in pine forest fragments associated with road proximity in a Mediterranean agricultural area. Brotons, Lluis; Herrando, Sergi. Landscape and Urban Planning; 20 November 2001; v.57, no.2, p.77-89.

Reduced feather growth rates of two common birds inhabiting central Amazonian forest fragments. Stratford, Jeffrey A.; Stouffer, Philip C. Conservation Biology; June 2001; v.15, no.3, p.721-728.

Reduced predation of artificial nests in border-edge cuts on woodlots. Fleming, Kathleen K.; Giuliano, William M. Journal of Wildlife Management; April 2001; v.65, no.2, p.351-355.

Reduced reproductive performance prior to death in the Black-legged Kittiwake: Senescence or terminal illness? Coulson, J. C.; Fairweather, J. A. Journal of Avian Biology; June 2001; v.32, no.2, p.146-152.

Reduced social contact causes auditory perceptual deficits in zebra finches, Taeniopygia guttata. Sturdy, Christopher B.; Phillmore, Leslie S.; Sartor, Jennifer J.; Weisman, Ronald G. Animal Behaviour; December 2001; v.62, no.6, p.1207-1218.

Reduced social contact causes auditory perceptual deficits in zebra finches, Taeniopygia guttata. Sturdy, Christopher B.; Phillmore, Leslie S.; Sartor, Jennifer J.; Weisman, Ronald G. Animal Behaviour; December 2001; v.62, no.6, p.1207-1218.

Reduction of female-directed song motifs induced by repeated singing in laboratory-bred zebra finches. Botas, A.; Espino, G.; Rosenfield, D. B.; Helekar, S. A. Neuroscience Letters; January 19 2001; v.297, no.3, p.203-206.

Reduction of phallus in birds: A reply to Briskie and Montgomerie. Wesolowski, Tomasz. Journal of Avian Biology; June 2001; v.32, no.2, p.188.

Redwing Turdus iliacus migration in Italy: An analysis of ringing recoveries. Andreotti, Alessandro; Bendini, Lionello; Piacentini, Dario; Spina, Fernando. Ringing & Migration; November 2001; v.20, no.4, p.312-319.

Reed warbler orientation: Initiation of nocturnal migratory flights in relation to visibility of celestial cues at dusk. Akesson, S.; Walinder, G.; Karlsson, L.; Ehnbom, S. Animal Behaviour; January 2001; v.61, no.1, p.181-189.

Refugial isolation versus ecological gradients: Testing alternative mechanisms of evolutionary divergence in four rainforest vertebrates. Smith, Thomas B.; Schneider, Christopher J.; Holder, Karen. Genetica (Dordrecht); 2001; v.112-113, p.383-398.

Regional patterns of wading bird productivity in northeastern U.S. estuaries. Parsons, Katharine C.; Schmidt, Stephanie R.; Matz, Angela C. Waterbirds; December 2001; v.24, no.3, p.323-330.

Regional variation in response of Field Sparrows to the threat of Brown-headed Cowbird parasitism. Burhans, Dirk E.; Strausberger, Bill M.; Carey, Michael D. Auk; July 2001; v.118, no.3, p.776-780.

Regular spatial patterns of bank swallow (Riparia riparia) tunnel entrances, with some possible evolutionary implications. Ghent, Arthur W. American Midland Naturalist; October 2001; v.146, no.2, p.414-423.

Regulation of diversity: Maintenance of species richness in changing environments. Brown, James H.; Ernest, S. K. Morgan; Parody, Jennifer M.; Haskell, John P. Oecologia (Berlin); February 2001; v.126, no.3, p.321-332.

Regulation of the hypothalamic-pituitary-adrenal axis in free-living pigeons. Romero, L. M.; Wingfield, J. C. Journal of Comparative Physiology B Biochemical Systemic and Environmental Physiology; April 2001; v.171, no.3, p.231-235.

Regulation of yolk-androgen concentrations by plasma prolactin in the American kestrel. Sockman, Keith W.; Schwabl, Hubert; Sharp, Peter J. Hormones and Behavior; December 2001; v.40, no.4, p.462-471.

Regulations for the use of laboratory animals. Glickman, Dan. JAMA (Journal of the American Medical Association); February 21 2001; v.285, no.7, p.941.

Relatedness and the evolution of conspecific brood parasitism. Andersson, Malte. American Naturalist; December 2001; v.158, no.6, p.599-614.

Relating climatological patterns to wetland conditions and wood duck production in the Southeastern Atlantic Coastal Plain. Kennamer, Robert A. Wildlife Society Bulletin; Winter 2001; v.29, no.4, p.1193-1205.

Relationship between habitat and landscape features and the avian community of red maple swamps in southern Rhode Island. Golet, Francis C.; Wang, Yong; Merrow, Jed S.; DeRagon, William R. Wilson Bulletin; June 2001; v.113, no.2, p.217-227.

Relationship between song characters and morphology in New World pigeons. Mahler, Bettina; Tubaro, Pablo L. Biological Journal of the Linnean Society; December 2001; v.74, no.4, p.533-539.

Relationship of body weight at sexual maturity with body weights at various ages in lines of Japanese quail (Coturnix coturnix japonica), unselected and selected for four-week body weight. Oguz, I.; Akbas, Y.; Altan, O. Journal of Applied Animal Research; June 2001; v.19, no.2, p.219-223.

Relationship of increased fowl cholera outbreaks in turkeys with high environmental temperatures. Simensen, Egil; Olson, LeRoy D. Avian Diseases; April-June 2001; v.45, no.2, p.461-466.

Relationship of songbird nest concealment to nest fate and flushing behavior of adults.

Relationships between birds and habitats in Latvian farmland. Aunins, Ainars; Petersen, Bo Svenning; Priednieks, Janis; Prins, Erik. Acta Ornithologica (Warsaw); Summer 2001; v.36, no.1, p.55-64.

Relationships between birds and habitats in Latvian farmland. Aunins, Ainars; Petersen, Bo Svenning; Priednieks, Janis; Prins, Erik. Acta Ornithologica (Warsaw); Summer 2001; v.36, no.1, p.55-64.

Relationships between nesting bald eagles and selective logging in south-central Oregon. Arnett, Edward B.; Anderson, Robert J.; Sokol, Chris; Isaacs, Frank B.; Anthony, Robert G.; Erickson, Wallace P. Wildlife Society Bulletin; Fall 2001; v.29, no.3, p.795-803.

Relationships between terrestrial vertebrate diversity, abundance and availability of coarse woody debris on south-eastern Australian floodplains. Mac Nally, Ralph; Parkinson, Amber; Horrocks, Gregory; Conole, Lawrie; Tzaros, Christopher. Biological Conservation; June 2001; v.99, no.2, p.191-205.

Relative abundance of invertebrate taxa in the nestling diet of three farmland passerine species, Dunnock Prunella modularis, Whitethroat Sylvia communis and Yellowhammer Emberzia citrinella in Leicestershire, England. Moreby, S. J.; Stoate, C. Agriculture Ecosystems & Environment; August 2001; v.86, no.2, p.125-134.

Relative abundances of forest birds of prey in western Newfoundland. Gosse, John W.; Montevecchi, William A. Canadian Field-Naturalist; January-March 2001; v.115, no.1, p.57-63.

Relative competitive ability does not change over time in blackbirds. Cresswell, Will. Journal of Animal Ecology; March 2001; v.70, no.2, p.218-227.

Relative differentiation of skeletal elements in European corvids. Jenner, Bartosz; Bochenski, Zbigniew M.; Tomek, Teresa. Journal fuer Ornithologie; Januar 2001; v.142, no.1, p.30-33.

Relative effects of litter and management on grassland bird abundance in Missouri, USA. Swengel, Scott R.; Swengel, Ann B. Bird Conservation International; June 2001; v.11, no.2, p.113-128.

Relative effects of litter and management on grassland bird abundance in Missouri, USA. Swengel, Scott R.; Swengel, Ann B. Bird Conservation International; June 2001; v.11, no.2, p.113-128.

Relative importance of isolation, area and habitat heterogeneity for vascular plant species richness of temporary wetlands ineast-German farmland. Brose, Ulrich. Ecography; December 2001; v.24, no.6, p.722-730.

Release experiments with wild rock doves (Columbia L. Livia GM.). Baldaccini, N. Emilio; Giunchi, Dimitri; Mongini, Emanuele; Ragionieri, Luisa. Behaviour; August 2001; v.138, no.8, p.923-936.

Release experiments with wild rock doves (Columbia L. Livia GM.). Baldaccini, N. Emilio; Giunchi, Dimitri; Mongini, Emanuele; Ragionieri, Luisa. Behaviour; August 2001; v.138, no.8, p.923-936.

Release from masking in fluctuating background noise in a songbird's auditory forebrain. Klump, Georg M.; Nieder, Andreas. Neuroreport; 3 July 2001; v.12, no.9, p.1825-1829.

Release of heat, moisture and carbon dioxide in an aviary system for laying hens. Von Wachenfelt, E.; Pedersen, S.; Gustafsson, G. British Poultry Science; May 2001; v.42, no.2, p.171-179.

Relevance of visual cues for orientation at familiar sites by homing pigeons: An experiment in a circular arena. Gagliardo, Anna; Odetti, Francesca; Ioale, Paolo. Proceedings of the Royal Society Biological Sciences Series B; 7 October 2001; v.268, no.1480, p.2065-2070.

Reliability of aerial photography for detecting population trends in gulls. Nisbet, Ian C. T. Waterbirds; December 2001; v.24, no.3, p.457-460.

Relic behaviours, coevolution and the retention versus loss of host defences after episodes of avian brood parasitism. Rothstein, Stephen I. Animal Behaviour; January 2001; v.61, no.1, p.95-107.

Relics: Penguin population programs. Sun, Liguang; Xie, Zhouqing. Science Progress; 2001; v.84, no.1, p.31-44.

Renal response to dietary protein in the house sparrow Passer domesticus. Goldstein, David L.; Guntle, Lieve; Flaugher, Candice. Physiological and Biochemical Zoology; May-June 2001; v.74, no.3, p.461-467.

Repelling sandhill cranes from corn: Whole-kernel experiments with captive birds. Blackwell, Bradley F.; Helon, David A.; Dolbeer, Richard A. Crop Protection; February 2001; v.20, no.1, p.65-68.

Repertoire, structure, and individual distinctiveness of Thick-billed Murre calls. Lefevre, Kara; Gaston, Anthony J.; Montgomerie, Robert. Condor; February 2001; v.103, no.1, p.134-142.

Report of the California Bird Records Committee: 1998 Records. Erickson, Richard A.; Hamilton, Robert A. Western Birds; 2001; v.32, no.1, p.13-49.

Report of the California Bird Records Committee: 1998 Records. Erickson, Richard A.; Hamilton, Robert A. Western Birds; 2001; v.32, no.1, p.13-49.

Reproduction of eastern wild turkeys in Virginia and West Virginia. Norman, Gary W.; Pack, James C.; Taylor, Curtis I.; Steffen, David E.; Pollock, Kenneth H. Journal of Wildlife Management; January 2001; v.65, no.1, p.1-9.

Reproduction success of American kestrels exposed to dietary polychlorinated biphenyls. Fernie, Kimberly J.; Smits, Judit E.; Bortolotti, Gary R.; Bird, David M. Environmental Toxicology and Chemistry; April 2001; v.20, no.4, p.776-781.

Reproductive biology and effect of nectar robbing on fruit production in Macleania bullata (Ericaceae). Navarro, Luis. Plant Ecology; January 2001; v.152, no.1, p.59-65.

Reproductive biology of Sabine's Gull in the Canadian Arctic. Stenhouse, Iain J.; Gilchrist, H. Grant; Montevecchi, William A. Condor; February 2001; v.103, no.1, p.98-107.

Reproductive biology of the protandrous Ferdinandusa speciosa Pohl (Rubiaceae) in southeastern Brazil. de Castro, Cibele Cardoso; de Oliveira, Paulo Eugenio Alves Macedo. Revista Brasileira de Botanica; 2001; v.24, no.2, p.167-172.

Reproductive condition, moult, and body mass of birds from Isabel, Solomon Islands. Kratter, Andrew W.; Steadman, David W.; Smith, Catherine E.; Filardi, Christopher E. Bulletin of the British Ornithologists' Club; June 2001; v.121, no.2, p.128-144.

Reproductive ecology and demography of the 'Akohekohe. Simon, John C.; Pratt, Thane K.; Berlin, Kim E.; Kowalsky, James R. Condor; November 2001; v.103, no.4, p.736-745.

Reproductive effort in variable environments, or environmental variation is for the birds. Orzack, Steven Hecht; Tuljapurkar, Shripad. Ecology (Washington D C); September 2001; v.82, no.9, p.2659-2665.

Reproductive endocrinology of a free-living, opportunistically breeding passerine (White-winged Crossbill, Loxia leucoptera). Deviche, Pierre; Sharp, Peter J. General and Comparative Endocrinology; September 2001; v.123, no.3, p.268-279.

Reproductive success of Lewis's Woodpecker in burned pine and cottonwood riparian forests. Saab, Victoria A.; Vierling, Kerri T. Condor; August 2001; v.103, no.3, p.491-501.

Reproductive success of Water Pipits in an alpine environment. Bollmann, Kurt; Reyer, Heinz-Ulrich. Condor; August 2001; v.103, no.3, p.510-520.

Resident bird species in urban forest remnants; landscape and habitat perspectives.

Residual tree retention ameliorates short-term effects of clear-cutting on some boreal songbirds. Tittler, Rebecca; Hannon, Susan J.; Norton, Michael R. Ecological Applications; December 2001; v.11, no.6, p.1656-1666.

Resights, recaptures and recoveries of Australasian Gannets Morus serrator breeding in Port Phillip Bay, Victoria. Norman, F. I. Corella; December 2001; v.25, no.4, p.77-84.

Resistance of leopard tortoises and helmeted guineafowl to Cowdria ruminantium infection (heartwater). Peter, Trevor F.; Mahan, Suman M.; Burridge, Michael J. Veterinary Parasitology; 27 July 2001; v.98, no.4, p.299-307.

Resistance to change of operant variation and repetition. Doughty, Adam H.; Lattal, Kennon A. Journal of the Experimental Analysis of Behavior; September 2001; v.76, no.2, p.195-215.

Resistance to extinction: Contingency termination and generalization decrement. Nevin, John A.; McLean, Anthony P.; Grace, Randolph C. Animal Learning & Behavior; May 2001; v.29, no.2, p.176-191.

Resource provision for farmland gamebirds: The value of beetle banks. Thomas, S. R.; Goulson, D.; Holland, J. M. Annals of Applied Biology; 2001; v.139, no.1, p.111-118.

Resource provision for farmland gamebirds: The value of beetle banks. Thomas, S. R.; Goulson, D.; Holland, J. M. Annals of Applied Biology; 2001; v.139, no.1, p.111-118.

Respiratory water loss in free-flying pigeons. Michaeli, Gilead; Pinshow, Berry. Journal of Experimental Biology; November 2001; v.204, no.21, p.3803-3814.

Response biases in auditory forebrain regions of female songbirds following exposure to sexually relevant variation in male song. Gentner, Timothy Q.; Hulse, Stewart H.; Duffy, Deborah; Ball, Gregory F. Journal of Neurobiology; January 2001; v.46, no.1, p.48-58.

Response of avian communities to historic habitat change in the northern Chihuahuan Desert. Pidgeon, A. M.; Mathews, N. E.; Benoit, R.; Nordheim, E. V. Conservation Biology; December 2001; v.15, no.6, p.1772-1788.

Response of bobwhite quail and gray-tailed voles to granular and flowable diazinon applications. Wang, Guiming; Edge, W. Daniel; Wolff, Jerry O. Environmental Toxicology and Chemistry; February 2001; v.20, no.2, p.406-411.

Response of breeding Florida grasshopper and Bachman's sparrows to winter prescribed burning. Shriver, W. Gregory; Vickery, Peter D. Journal of Wildlife Management; July 2001; v.65, no.3, p.470-475.

Response of passerine birds to forest edge in coast redwood forest fragments. Brand, L. Arriana; George, T. Luke. Auk; July 2001; v.118, no.3, p.678-686.

Response of seabirds to thermal boundaries in the tropical Pacific: The thermocline versus the Equatorial Front. Spear, Larry B.; Ballance, Lisa T.; Ainley, David G. Marine Ecology Progress Series; September 10 2001; v.219, p.275-289.

Response of silvereyes (Zosterops lateralis) to dietary tannins: The paradox of secondary metabolites in ripe fruit. Stanley, Margaret C.; Lill, Alan. Australian Journal of Zoology; 2001; v.49, no.6, p.633-640.

Response to and efficacy of vaccination against eastern equine encephalomyelitis virus in emus. Tengelsen, Leslie A.; Bowen, Richard A.; Royals, Michael A.; Campbell, Grant L.; Komar, Nicholas; Craven, Robert B. Journal of the American Veterinary Medical Association; May 1 2001; v.218, no.9, p.1469-1473.

Response to interspecific vocalizations is affected by degree of phylogenetic relatedness in Streptopelia doves. De Kort, Selvino R.; Ten Cate, Carel. Animal Behaviour; January 2001; v.61, no.1, p.239-247.

Responses by breeding birds to heterospecific song and mobbing call playbacks under varying predation risk. Forsman, Jukka T.; Monkkonen, Mikko. Animal Behaviour; December 2001; v.62, no.6, p.1067-1073.

Responses of birds to rainfall and seed abundance in the southern Karoo, South Africa. Dean, W. R. J.; Milton, Suzanne J. Journal of Arid Environments; January 2001; v.47, no.1, p.101-121.

Responses of ectostriatal neurons during delayed matching-to-sample behavior in pigeons (Columbia livia). Colombo, Michael; Frost, Nicole; Steedman, Wendy. Brain Research; 26 October 2001; v.917, no.1, p.55-66.

Responses of ectostriatal neurons during delayed matching-to-sample behavior in pigeons (Columbia livia). Colombo, Michael; Frost, Nicole; Steedman, Wendy. Brain Research; 26 October 2001; v.917, no.1, p.55-66.

Responses of woodland birds to increasing numbers of deer: A review of evidence and mechanisms. Fuller, R. J. Forestry (Oxford); 2001; v.74, no.3, p.289-298.

Responses to heat stress in commercial and local broiler stocks. 1. Performance traits. Yalcin, S.; Ozkan, S.; Turkmut, L.; Siegel, P. B. British Poultry Science; May 2001; v.42, no.2, p.149-152.

Responsiveness of Elf Owls to conspecific and Great Horned Owl calls. Boal, Clint W.; Bibles, Brent D. Journal of Field Ornithology; Winter 2001; v.72, no.1, p.66-71.

Restoration of body mass in King Penguins after egg abandonment at a critical energy depletion stage: Early vs late breeders. Robin, Jean-Patrice; Fayolle, Christine; Decrock, Frederic; Thil, Marie-Anne; Cote, Steeve D.; Bernard, Servane; Groscolas, Rene. Journal of Avian Biology; December 2001; v.32, no.4, p.303-310.

Restoration of fragmented landscapes for the conservation of birds: A general framework and specific recommendations for urbanizing landscapes. Marzluff, John M.; Ewing, Kern. Restoration Ecology; September 2001; v.9, no.3, p.280-292.

Restoration of the Ruddy Shelduck Tadorna ferruginea population in "Ascania Nova" nature reserve (Southern Ukraine). Zubko, Valentina; Havrilenko, Victor; Semenov, Nikolay. Acta Ornithologica (Warsaw); Summer 2001; v.36, no.1, p.97-100.

Restoration of wetlands from abandoned rice fields for nutrient removal, and biological community and landscape diversity. Comin, Francisco A.; Romero, Jose A.; Hernandez, Oliver; Menendez, Margarita. Restoration Ecology; June 2001; v.9, no.2, p.201-208.

Results of bird ringing in the study of migration routes. Bairlein, Franz. Ardea; 2001; v.89, no.1 Special Issue, p.7-19.

Results of the first anuran calling survey in Nebraska. McLeod, David S.; Vaughan, John T.; Church, Kevin E.; Figgs, Daylan. Transactions of the Nebraska Academy of Sciences; 2001; no.27, p.13-16.

Resurrecting the dammed: A look at Colorado River restoration. Cohn, Jeffrey P. Bioscience; December 2001; v.51, no.12, p.998-1003.

Retinal photoreceptors of paleognathous birds: The ostrich (Struthio camelus) and rhea (Rhea americana). Wright, Mathew W.; Bowmaker, James K. Vision Research; 3 January 2001; v.41, no.1, p.1-12.

Retrospective analysis of demographic responses to environmental change: A lesser snow goose example. Cooch, Evan; Rockwell, Robert F.; Brault, Solange. Ecological Monographs; August 2001; v.71, no.3, p.377-400.

Re-use of nesting material by Blue-gray Gnatcatchers. Crins, Bill. Ontario Birds; April 2001; v.19, no.1, p.28.

Revising the convergence hypothesis of avian use of honeydew: Evidence from Dominican subtropical dry forest. Latta, Steven C.; Gamper, Heather A.; Tietz, James R. Oikos; May 2001; v.93, no.2, p.250-259.

Revision of the genus Parvirostrum Fuhrmann, 1908 (Cestoda: Cyclophyllidea: Paruterinidae). Georgiev, Boyko B.; Vaucher, Claude. Systematic Parasitology; September 2001; v.50, no.1, p.13-29.

Revisit schedule does not affect results of point counts. Brooks, Marshall A.; Harrigan, Brenna C.; Johnson, Karen M.; Lowe, David E.; Lowery, Justin P.; McGlothlin, Joel W.; Sasso, Michelle M.; Smith, Sarah A.; Cristol, Daniel A. Journal of Field Ornithology; Summer 2001; v.72, no.3, p.404-411.

Revisit schedule does not affect results of point counts. Brooks, Marshall A.; Harrigan, Brenna C.; Johnson, Karen M.; Lowe, David E.; Lowery, Justin P.; McGlothlin, Joel W.; Sasso, Michelle M.; Smith, Sarah A.; Cristol, Daniel A. Journal of Field Ornithology; Summer 2001; v.72, no.3, p.404-411.

Ring species as bridges between microevolution and speciation. Irwin, Darren E.; Irwin, Jessica H.; Price, Trevor D. Genetica (Dordrecht); 2001; v.112-113, p.223-243.

Ringing recoveries contain hidden information about orientation mechanisms. Mouritsen, Henrik. Ardea; 2001; v.89, no.1 Special Issue, p.31-42.

Ring-necked Pheasant: Phasianus colchicus. Giudice, John H.; Ratti, John T. Birds of North America; 2001; no.572, p.1-31.

Riparian bird communities in relation to land management practices in floodplain woodlands of south-eastern Australia. Jansen, Amy; Robertson, Alistar I. Biological Conservation; August 2001; v.100, no.2, p.173-185.

Risks of decline and extinction of the endangered Amsterdam albatross and the projected impact of long-line fisheries. Inchausti, Pablo; Weimerskirch, Henri. Biological Conservation; August 2001; v.100, no.3, p.377-386.

Risk-sensitive foraging in coal tits. Bautista, Luis M.; Martin, Beatriz; Martinez, Laura; Mayo, Carolina. Behaviour; January 2001; v.138, no.1, p.69-83.

Rodent control decreases predation on artificial nests in O'ahu 'Elepaio habitat. VanderWerf, Eric A. Journal of Field Ornithology; Summer 2001; v.72, no.3, p.448-457.

Role of begging and sibling competition in foraging strategies of nestlings. Rodriguez-Girones, Miguel A.; Enquist, Magnus; Lachmann, Michael. Animal Behaviour; April 2001; v.61, no.4, p.733-745.

Role of human population size in raising bird and mammal threat among nations. McKinney, Michael L. Animal Conservation; February 2001; v.4, no.1, p.45-57.

Role of plasma ANG II in the excretion of acute sodium load in a bird with salt glands (Anas platyrhynchos). Heinz, Myriam K.; Gray, David A. American Journal of Physiology; July 2001; v.281, no.1 Part 2, p.R346-R351.

Roof and ground nesting Eurasian Oystercatchers in Aberdeen. Duncan, Alistair; Duncan, Raymond; Rae, Robert; Rebecca, Graham; Stewart, Brian. Scottish Birds; June 2001; v.22, no.1, p.1-8.

Roof assemblies of lapwings and plovers in Britain. Calbrade, N.; Entwistle, C. A.; Smith, A. J.; Spencer, K. G. British Birds; January 2001; v.94, no.1, p.35-38.

Rook persecution in Orkney in the 1950s and the establishment of the first colony in Shetland. Kinnear, Pete. Scottish Birds; June 2001; v.22, no.1, p.61.

Roosting ecology of Red Junglefowl (Gallus gallus spadiceus) in oil palm plantation. Arshad, Muhammad I.; Zakaria, Mohamed; Sajap, Ahmad S.; Ismail, Ahmad. Pakistan Journal of Scientific and Industrial Research; December 2001; v.44, no.6, p.347-350.

Roosting ecology of Red Junglefowl (Gallus gallus spadiceus) in oil palm plantation. Arshad, Muhammad I.; Zakaria, Mohamed; Sajap, Ahmad S.; Ismail, Ahmad. Pakistan Journal of Scientific and Industrial Research; December 2001; v.44, no.6, p.347-350.

Roosting of ducks on open water: Resting site selection in relation to safety. Shimada, Tetsuo. Japanese Journal of Ornithology; December 2001; v.50, no.4, p.167-174.

Roosting of the great tit, Parus major and the nuthatch, Sitta europaea in nest boxes in an oak-hornbeam forest. Kristin, Anton; Mihal, Ivan; Urban, Peter. Folia Zoologica; 2001; v.50, no.1, p.43-53.

Roosting site of the Sombre Hummingbird Campylopterus cirrochloris (Trochilidae) in southern Bahia, Brazil. Oniki, Yoshika; Schuchmann, Karl-L.; Willis, Edwin O.; Sigrist, Tomas; Baudet, Gerard. Bulletin of the British Ornithologists' Club; December 2001; v.121, no.4, p.256-257.

Roost-site characteristics of Mexican Spotted Owls in Sierra Fria, Aguascalientes, Mexico. Tarango, Luis A.; Valdez, Raul; Clemente, Fernando; Mendoza, German Journal of Raptor Research; June 2001; v.35, no.2, p.165-168.

Roost-site characteristics of Mexican Spotted Owls in Sierra Fria, Aguascalientes, Mexico. Tarango, Luis A.; Valdez, Raul; Clemente, Fernando; Mendoza, German. Journal of Raptor Research; June 2001; v.35, no.2, p.165-168.

Ruby-crowned kinglet impaled on greenbriar thorn. Shackelford, Clifford E.; Shackelford, Julie K. Southwestern Naturalist; March 2001; v.46, no.1, p.116-118.

Ruffed Grouse (Bonasa umbellus) drumming log and habitat use in Grand Teton National Park, Wyoming. Buhler, Matt L.; Anderson, Stanley H. Western North American Naturalist; April 2001; v.61, no.2, p.236-240.

Rufous hummingbirds' memory for flower location. Henderson, Jonathan; Hurly, T. Andrew; Healy, Susan D. Animal Behaviour; May 2001; v.61, no.5, p.981-986.

Ryan, Peter G.; Cooper, John; Glass, James P.