In the Sado Estuary are dunlin, Eurasian curlew, grey plover and common redshank. The endangered piping plover and some tern species rely on beaches for nesting. There are also populations of various moorland birds such as curlew, snipe and golden plover. The South Pennines support internationally important numbers of European golden plover, curlew, merlin and twite. Some migratory birds include the American golden plover, Peregrine falcon, and the Bobolink. Kentish plover, common ringed plover, sanderling, and black-tailed godwit in addition to the others. The park is a habitat for birds, primarily for shorebirds including the endangered piping plover. The site is a rich habitat for birds including the redshank and little ringed plover. A lapwing can be thought of as a larger plover. Older names are the upland plover and Bartram's sandpiper. Crane Beach is an important nesting site for the threatened piping plover. The Plover, Falcon and Kestrel machines followed. Wading birds such as snipes, curlews and golden plover feed in the waterlogged bogland. Two such visitors are the piping plover and the sea turtle. The adult crabs are food for threatened species such as the crab plover.