Clapper RailRallus longirostris
14-16" (36-41 cm). A long-billed, chicken-sized rail of salt marshes. All birds have black-and-white barred flanks. Eastern populations are grayish brown without rusty underparts of similar King Rail. Birds on Gulf Coast and in Far West are rustier and more like the King Rail, but do not show rust on shoulders or sides of face. King Rail prefers freshwater marshes.