captive intersex female American Wigeon x Redhead hybrid, Skagit County (Washington, USA), 25th December 2009 - copyright Steve Mlodinow
(photo ID: 1539)
Steve tells us that this bird was paired with a male Redhead. Intersexes (females developing male characteristics) seem to be much more frequent among hybrids than pure birds.
captive
intersex female American Wigeon x Redhead hybrid (with Redhead; same bird as in photo ID 1539, above), Skagit County
(Washington, USA), 30th November 2008 - copyright Steve Mlodinow
(photo IDs: 1483-1484)
American Wigeon Anas americana
Redhead Aythya americana
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