43 cm (17") Rare. Asian bird that may visit Alaska and west coast states.
Male: multicolored intricately circular patterned head. Vertical white lines border the gray sides.
Female: similar to female Green-winged Teal but has a distinctive white spot at base of bill.
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Credit: Birdlover.jp
Images
Credit: Milo Bostock
Credit: Ken
Mallard
American Black Duck
Mottled Duck
Spot-billed Duck
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Eurasian Wigeon
American Wigeon
Falcated Duck
Green-winged Teal
Garganey
Cinnamon Teal
Northern Shoveler
Northern Pintail
White-cheeked Pintail