Ducks, Geese and Swans (Anatidae)

Lesser Scaup (Aythya affinis) - HBW 1, p. 618

French: Fuligule à tête noire German: Kleine Bergente Spanish: Porrón Bola
Other common names: Bluebill, Little Bluebill, Broadbill

Taxonomy: Fuligula affinis Eyton, 1838, North America.
Considered by some to form superspecies with A. marila. Hybridization with other species of Aythya, particularly A. marila, producing fertile progeny, frequent in captivity. Monotypic.

Distribution: C Alaska to NW USA, and E to Great Lakes.

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