- a large, black and white woodpecker, Campephilus principalis, of the southern U.S. and Cuba, with a length of about 20 inches (51 centimeters), an ivory-colored bill that has a uniquely flattened tip, and a prominent crest that is mostly red on the males: dependent on the vast tracts of primeval hardwoods that were deforested with intensity from the mid-19th century, the ivory-billed woodpecker is now classified as possibly extinct.
