Dennis Paulson writes:
> Usually they've lost it by early or mid November. I have no idea why one
> would look yellow, although when they come down here in fall, still in
> breeding plumage, the gray of the head and neck has indeed faded to almost
> white; very striking.


Thank you for your answer. It is highly likely that what seemed pale yellow to
me was indeed dirt white, so your explanation seems quite satisfactory.

Thank you again !

--
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A bird in the bush is better than two in the hand.

Serge Le Huitouze School of Computing Science
email: serge at cs.sfu.ca Simon Fraser University
tel: (604) 291-5423 Burnaby, British Columbia
fax: (604) 291-3045 V5A 1S6 Canada