20-25 cm (8-10") Common. Nests on Tundra, winters along rocky coastal shores, beaches.
Plump, robin-sized shorebird with short orange legs. Turns over stones and shore weeds with bill in search of food.
Summer: striking black-and-white head, black and chestnut upperparts, white underparts, black bra-like breast pattern.
Winter: similar pattern but much duller.
In flight: bold black, brown, and white pattern on wing, rump, and tail.
Song: rattled "tuk-a-tuk".