| Family: |
Anatidae () |
| Max. size: |
51 cm TL (male/unsexed); max.weight: 648.5 g |
| Environment: |
others; freshwater; marine; depth range 0 - 60 m |
| Distribution: |
Pacific Ocean and Northern Atlantic and the Arctic: Alaska, Canada, Russia and USA. |
| Diagnosis: |
Culmen: 2.65 cm; tarsus: 3.495 cm; wing: 22.0 cm. |
| Biology: |
Maximum common depth based on occurrence (Ref. 115862). To be replaced with a better reference. Primarily lives in coastal marine waters approximately 9 months in a year. During breeding season, it frequents shallow wetlands towards the edge of the boreal forest; while non-breeding birds use deeper ponds, lakes and nearshore marine areas. Winter along the Pacific coast from the Bering Sea to as far as California; and some from Alaska may reach the northern Bering Sea across to Russia Foraging behavior involves diving and swimming underwater up to a depth of less than 9 meters. This duck has been recorded to dive up to 60 meters (Ref. 83519). Common diving depth is 2-3 m (9-10 ft) (Ref. 115862). |
| IUCN Red List Status: |
Vulnerable (VU); Date assessed: 07 August 2018 (A4bce) Ref. 123251)
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| Threat to humans: |
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| Country info: |
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