Aves | Anseriformes
SAUP Database. 2006. (Ref. 356)
Size / Weight / Age
Max length : 54.0 cm TL male/unsexed; (Ref. 94965); max. published weight: 950.00 g (Ref. 356)
Climate / Range
Eastern Pacific and Western Atlantic: Alaska, Canada and USA. Subtropical to boreal.
Culmen: 3.7 cm; wing: 24.4 cm (Ref. 356). Large duck; male: black overall; white forehead, nape and base of bill; orange bill; female: dark brown overall; light cheek (Ref. 94965).
Surface diving; coastal. Winters from Alaska to Baja California, Nova Scotia to Florida, Gulf of Mexico (Ref. 356).
IUCN Red List Status (Ref. 114614)
CITES status (Ref. 94142)
Threat to humans
| FisheriesWiki |
Estimation of some characteristics with mathematical models