Aves | Anseriformes
Environment: milieu / climate zone / depth range / distribution range
Others; freshwater; brackish; depth range 0 - 5 m (Ref. 115854). Subtropical
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.
Length at first maturity / Size / Weight / Age
Maturity: Lm ?  range ? - ? cm Max length : 39.0 cm TL male/unsexed; (Ref. 94965); max. published weight: 403.50 g (Ref. 356)
Culmen: 2.7 cm; tarsus: 3.125 cm; wing: 16.5 cm.
Depth range based on occurrence in Chesapeake Bay (Ref. 115854). To be replaced with a better reference. 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). Common diving depth of 1 to 5 m (Ref. 115854).
Life cycle and mating behavior
Maturity | Reproduction | Spawning | Eggs | Fecundity | Larvae
SAUP Database. 2006. (Ref. 356)
IUCN Red List Status (Ref. 120744)
CITES status (Ref. 108899)
Threat to humans
| FishSource |
Estimates of some properties based on models
): 5.6 - 11.3, mean 9 (based on 519 cells).