The Nature Conservancy: Ivory-Billed Woodpecker - Reports on the rediscovery search, the habitat of the Big Woods, the bird's history, and news. Ivory-billed Woodpecker - Lengthy article by Julie Zickefoose. NPR: Ivory-Billed Woodpecker Rediscovered in Arkansas - Article with photo gallery and audio by science correspondent Christopher Joyce who was part of the research team. Science: Ivory-billed Woodpecker (Campephilus principalis) Persists in Continental North America - Announcement of confirmed sightings in 2004 and 2005. Full article in PDF format. Ivory-billed Woodpecker - U.S. Fish and Wildlife Service site with updates on the discovery of Ivory-billed Woodpecker at Cache River NWR in Arkansas and the recovery effort. Ivory-bills LIVE!! - A weblog devoted to opinions, news, and commentary on the Ivory-billed Woodpecker. Ivory-billed Woodpecker Information - Site by David Luneau, who videotaped an Ivory-billed Woodpecker on April 25, 2004. Includes search summary, techniques, and DVD of the video for sale. Ivory-billed Woodpecker Conservation Stamp Print Program - Art by wildlife artist Larry Chandler plus news and extensive links to other resources. Cornell Lab of Ornithology: Ivory-billed Woodpecker - Includes details of the rediscovery in 2004, past searches, and the bird's slide toward extinction. The Search for the Ivory-billed Woodpecker - Account of an expedition to follow up on a recently reported sighting of the presumed extinct Campephilus principalis from Louisiana. Campephilus guatemalensis (Pale-billed Woodpecker) - Offers sound recordings of this species. Also provides scientific classification.