The oystercatcher is a large, stocky, black and white wading bird. It has a long, orange-red bill and reddish-pink legs. In flight, it shows a wide white wing-stripe, a black tail, and a white rump that extends as a 'V' between the wings. Because it eats cockles, the population is vulnerable if cockle beds are overexploited. Breeds on almost all UK coasts; over the last 50 years, more birds have started breeding inland. Most UK birds spend the winter on the coast; where they are joined on the east coast by birds from Norway.