French: Fuligule milouinan German: Bergente Spanish: Porrón bastardo
Other common names:
European Scaup (marila),
Pacific Scaup (nearctica)
Subspecies and Distribution
A. m. marila
(Linnaeus, 1761) – N Eurasia from Iceland E to R Lena, Siberia; winters mainly in NW Europe and around Adriatic, Black and Caspian Seas.
A. m. nearctica
Stejneger, 1885 – NE Siberia from R Lena E to Bering Sea coast, Aleutian Is, and Alaska E through C Canada to Atlantic coast; winters on Pacific coast of Asia as far S as SE China, and on both coasts of North America S to Baja California and Gulf Coast, also on Great Lakes.
40–51 cm; male 850–1372 g, female 700–1312 g; wingspan 72–84 cm. Breeding male has head and neck black glossed green or purple, breast, upper mantle,... read more
Like other Aythya generally rather silent during non-breeding season: male gives two main... read more
Breeds on shallow, small lakes, rivers and pools in tundra and wooded tundra zones at high... read more
Food and feeding
Omnivorous: molluscs often major item in diet; 80–95% of stomach contents in one study in Denmark, but introduced zebra mussels (... read more
Starts May to early Jun, mainly mid May in Fennoscandia and N Russia, and from late May in Iceland. Seasonally monogamous, with pairs... read more
Migratory, though perhaps only partially in some areas (e.g. some remain in Iceland in winter, and... read more
Status and conservation
Not globally threatened (Least Concern). Common and widespread, but population trends poorly known, except locally in parts of Europe, where increases and decreases have been... read more
Only subscribers are able to see the bibliography. Login or Subscribe to get access to a lot of extra features!