The Four Keys to ID
- Size & Shape
A rather small, compact diving duck with a rather large head, a long, heavy bill, and a fairly long tail.
Relative Size
Larger than a Harlequin Duck, smaller than a Common Eider.
crow-sizedMeasurements
- Both Sexes
- Length: 16.9-17.7 in (43-45 cm)
- Weight: 30.0-31.0 oz (850-880 g)
- Color Pattern
- Behavior
- Habitat