[obol] EUWI x AMWI at Crystal Springs

[Wayne Hoffman]

Clearly there are birds in oregon in winter that are American Wigeon X 
Eurasian Wigeon hybrids.  I have not seen the Crystal Springs bird that 
people have been discussing.  However, I would hesitate to identify a bird 
as a hybrid based just on head pattern.  Hybrids should also differ from 
Eurasian Wigeons in several aspects of body plumage.

I recently saw a reference to a "green-eared morph" of Eurasian Wigeon 
occurring in Japan.

Wayne


----- Original Message ----- 
From: "Chris Warren" <warrech at earlham.edu>
To: <obol at lists.oregonstate.edu>
Sent: Tuesday, January 02, 2007 1:48 PM
Subject: Re: [obol] EUWI x AMWI at Crystal Springs


> Jim et al.,
>
> I followed a lead from another birder and found what sounds to be the same
> hybrid bird at Crystal Springs on October 29th, 2006 and observed him over
> several occasions throughout the fall and early winter.  He was absent 
> (from
> my sight at least) the last two times I visited, however.  There is both a
> male and female "full" (appearing) Eurasians at Westmoreland Park last I
> checked.  I have not seen these birds associate with each other. Good
> birding!
>
> Chris Warren
> Portland, OR
> -- 
>
>
>
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