posted January 13th, 2010; last edited April 27th, 2012 –– David Sibley

Barrow’s Goldeneye  Bucephala islandica

Distinguishing female Barrow’s and Common Goldeneyes – an overview of the identification challenges of this difficult species pair.

Identification of (hybrid?) female Goldeneyes - A Jan 2010 post prompted by an interesting bird in New Jersey, with tracings of head shape and discussion of bill color.

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