Ducks, Geese and Swans (Anatidae)

Canvasback (Aythya valisineria) - HBW 1, p. 615

French: Fuligule à dos blanc German: Riesentafelente Spanish: Porrón Coacoxtle

Taxonomy: Anas valisineria Wilson, 1814, eastern United States.
Forms superspecies with A. ferina. Hybridization with other species of Aythya and Netta frequent in captivity. Monotypic.

Distribution: From C Alaska and W Canada southwards to NE California and Minnesota, USA.

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