This is a compact duck with a steep forehead and short stubby bill. Male: Unmistakable. Blue-gray overall with chestnut sides. May appear all dark in low light. White markings include a large patch at the base of the bill, a small spot behind the eye, and broad lines on the neck, breast, and along the scapulars and tertials. Young males show a similar pattern, but are more muted. Female: Dark brown overall, with paler belly. Shows an irregularly shaped whitish patch at the base of the bill, and a small white spot behind the eye.

Length: 38 (cm) Wingspan: 66 (cm)

Voice:

High nasal calls and a mousy squeak.

Habitat:

Nests along fast-flowing mountain streams. Winters along rocky coasts.

Behavior:

Unlike most diving ducks, spends considerable amount of time out of the water. Often found feeding right in the surf line among intertidal rocky outcroppings.

Feeding:

Dives for aquatic invertebrates, and occasionally fish.