Size: L: 40 cm. Wt: 215 g. Males and females are similar. This species is seasonally dimorphic.

Breeding Adult: upperparts, breast, sides, and flanks heavily mottled grey-brown and dark brown; throat and belly white; bill long, straight, dark grey; legs greyish

Winter Adult: upperparts, breast, sides and flanks soft grey, with black wingtips; throat and spot in front of eye whitish; belly white; bill and legs as in breeding adult

Juvenile: upperparts mottled brown; head, breast, sides, and flanks buffy brown, with white throat and spot in front of eye; belly white; bill and legs as in adults