The present status of the Ivory-billed Woodpecker (Campephilus principalis) The present status of the Ivory-billed Woodpecker ()v. 8American Ornithologists’ Union174–186Hasbrouck, Edwin M. 1891. "The present status of the Ivory-billed Woodpecker (Campephilus principalis)." The Auk, 8 174–186.More...ID: 126741Type: articleKeywords: USNM; NMNH