- Large dabbling duck.
- Body dark brown.
- Head and neck lighter brown.
- White underwing linings contrast sharply with dark body in flight.
- Greenish blue at back of wing.
Immature DescriptionSimilar to adult.
Relative Sizebetween crow and goose
- Length: 19.7-22.5 in (50-57.2 cm)
- Weight: 30.9-43.8 oz (876-1241 g)
- Wingspan: 33.5-343.3 in (85-872 cm)
- Length: 19.7-21.0 in (46.9-53.4 cm)
- Weight: 24.7-40.6 oz (699-1151 g)
- Wingspan: 31.5-327.2 in (80-831 cm)