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noun
Canvasback; redhead; pochard; etc..
synonym: genus Aythya.
is a specific kind of: bird genus.
has as a member: Aythya valisineria, canvasback, canvasback duck | Aythya ferina, pochard | Aythya americana, redhead | bluebill, broadbill, scaup, scaup duck.
is a member of: Anatidae, family Anatidae.
Find more on Aythya elsewhere: etymology - rhymes - Wikipedia.
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