I think the size of the bill may be a more reliable distinguishing factor
than the coloration. In this photo, the bill looks relatively large, which
is to say more like a Common than a Barrow's. The other factor I think you
can use is the relative steepness of the forehead, which in this photo
appears less steep, which would also indicate Common.



--g



Gary T. Smith

Alki Point



From: tweeters-bounces at mailman2.u.washington.edu
[mailto:tweeters-bounces at mailman2.u.washington.edu] On Behalf Of Dennis
Rockwell
Sent: Wednesday, March 10, 2010 5:02 PM
To: David Richardson; Tweeters
Subject: Re: [Tweeters] Common or Barrow's Goldeneye ?



David,



I'm unaware of plumage variations between Barrow's & Common Goldeneye that
can aid identification. But in my opinion the full yellow bill and the head
shape make this a female Barrow's Goldeneye.



Dennis Rockwell
Kennewick, WA
dennisrockwell at dwwireless.net

----- Original Message -----

From: David Richardson <mailto:daver at nwlink.com>

To: Tweeters <mailto:tweeters at u.washington.edu>

Sent: Wednesday, March 10, 2010 4:32 PM

Subject: [Tweeters] Common or Barrow's Goldeneye ?



This duck was dabbling around near the Mukilteo lighthouse and since it has
a bright yellow bill I think it should be a Barrow's except the other
plumage doesn't seem to match - help someone ?



http://www.mycamerasees.com/Birds/Birds/8592766_FXaVU#807310538_xyiJx-XL-LB



David Richardson



DaveR at nwlink.com

www.MyCameraSees.com





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