Journal of Philosophical Transactions of the Royal Society of London: Biological Sciences...
(29 November 2002, volume 357, number 1427) The accompanying caption read: a crow shares important information with the other members of a night-time roost in a Douglas fir forest. ('Nightline' by Judith G. Smith; http://artshow.com/apow/smith.)
A
larger shot of the painting was included online:
