Aves | Anseriformes
SAUP Database. 2006. (Ref. 356)
Size / Weight / Age
Max length : 39.0 cm TL male/unsexed; (Ref. 94965); max. published weight: 403.50 g (Ref. 356)
Others; freshwater; brackish
Climate / Range
Western Atlantic and Northeast Pacific: Winters along Pacific coast from Aleutian Islands to Mexico, across S USA along Gulf coast, N to New England, Greater Antilles.
Culmen: 2.7 cm; tarsus: 3.125 cm; wing: 16.5 cm.
Surface diving; dabbling; coastal. Winters along Pacific coast from Aleutian Islands to Mexico, across South of USA along Gulf coast, North to New England, Greater Antilles (Ref. 356). Feeds on small snails, insects and animal larvae in freshwater habitats, and clams, snails, amphipods and worms in marine ecosystems (Ref. 94965).
IUCN Red List Status (Ref. 114614)
CITES status (Ref. 94142)
Threat to humans
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Estimation of some characteristics with mathematical models