Order Charadriiformes 11 species in 1 genus Size: Between 40 cm (Eurasian Oystercatcher, Haematopus ostralegus) and 51 cm (Australian Pied Oystercatcher, Haematopus longirostris). Distribution: All biogeographic regions, excepting Antarctica. Only one migratory species (H. ostralegus). Habitat: Coasts, marshes, fresh and brackish wetlands. Feeding: Mainly bivalve molluscs. Also worms, crabs and similar prey. Breeding: The nest is a depression on the sand or stones. Incubation 24-35 days. Nestling period 28-35 days. Threat status: 1 threatened species (Endangered). 1 species Extinct. [+info]