Definition: An order of large, long-necked, long-legged, flightless birds, found in South America. Known as rheas, they are sometimes called American ostriches, though they are in a separate order from true OSTRICHES.
note X ref OSTRICH, AMERICAN: OSTRICHES see STRUTHIONIFORMES is available
Other names Ostrichs, American; American Ostrichs; American Ostriches; American Ostrich; Rhea americana; Ostrich, American; Rhea; Rheas; Ostriches, American
