The Hudsonian godwit (Limosa haemastica) is a large shorebird in the sandpiper family, Scolopacidae. The genus name Limosa is from Latin and means "muddy", from limus, "mud". The specific haemastica is from Ancient Greek and means "bloody". An 18th century name for this bird was red-breasted godwit.The English term "godwit" was first recorded in about 1416–7 and is believed to imitate the bird's call.
Adults have long dark legs and a long pink bill with a slight upward curve and dark at the tip. The upper parts are mottled brown and the underparts are chestnut. The tail is black and the rump is white. They show black wing linings in flight. The legs and feet are bluish-grey. Their breeding habitat is the far north near the tree line in northwestern Canada and Alaska, also on the shores of Hudson Bay. They nest on the ground, in a well-concealed location in a marshy area. The female usually lays 4 olive-buff eggs marked with darker splotches. Incubation period is 22 days.Both parents look after the young birds, who find their own food and are able to fly within a month of hatching.