Found on shores and salt marshes along the coast. True to its name, it is specialized in feeding on bivalves (oysters, clams, and mussels) and uses its brightly colored bill to open them. Relatively broad-winged and slow-flying for a shorebird. Two races of American Oystercatcher breed in North America: the eastern race along the Atlantic coast, and a second race along the Pacific coast from northwestern Baja California southward. North of Baja California, the Black Oystercatcher takes over.