ivorybill

from The Century Dictionary.

• noun The ivory-billed woodpecker, Campophilus principalis: so called from the ivory-like hardness and whiteness of the bill. See cut under Campophilus. Coues.

from the GNU version of the Collaborative International Dictionary of English.

• noun (Zoöl.) A large, handsome, black-and-white North American woodpecker (Campephilus principalis), having a large, sharp, ivory-colored beak. Its general color is glossy black, with white secondaries, and a white dorsal stripe. The male has a large, scarlet crest. It is now rare, and found only in the Gulf States and Cuba.

from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.

• noun large black-and-white woodpecker of southern United States and Cuba having an ivory bill; nearly extinct