Dunlin

The dunlin is a small wader, 16–20 centimetres long with a wingspan of 38–43 centimetres and a weight of 34–77 grams. An adult in breeding plumage shows a distinctive black belly that no other similar-sized wader has. In winter it is greyish-brown above and white below. Juveniles are brown above with two weak whitish V shapes on the back, less obvious than on the little stint, and usually have black marks on the flanks or belly. All ages show a narrow white wingbar in flight, and the legs and slightly decurved bill are black. (Wikipedia, general species account)

It is a circumpolar breeder in Arctic or subarctic regions. Birds that breed in western Europe are short-distance migrants, largely staying on western and southern European and northwest African coasts, while those breeding in far northern Europe and Asia are long-distance migrants, wintering south to Africa and southeast and west Asia. The English name is a dialect form of dunling, from dun, a dull brown, and was first recorded in 1531–1532. (Wikipedia, general species account)