Data for:
Brandywine Creek State Park
List:

Anseriformes > Anatidae

Barrow's Goldeneye

Bucephala islandica

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Identification

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Striking diving duck of coastal harbors, mountain lakes, and large rivers. Very similar to Common Goldeneye. Males are easiest: Barrow’s has more black on the back, a downward-pointing spur on the side, and a crescent-shaped (not circular) white patch on the face. Females can be very difficult. Barrow’s usually has a yellow bill, but Common can rarely show a dull yellowish bill. Head and bill shape are important: Barrow’s has a steeper forehead and a puffy nape, and a shorter bill with a more rounded lower edge. Fairly common in western U.S. and Canada; much less common in the northeast. Small population in Iceland. Frequently found in mixed flocks with Common Goldeneye.

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Barrow's Goldeneye

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