Cornell Lab of Ornithology: Ivory-billed Woodpecker
- Includes details of the rediscovery in 2004, past searches, and the bird's slide toward extinction.
- http://www.birds.cornell.edu/ivory/

Ivory-billed Woodpecker Conservation Stamp Print Program
- Art by wildlife artist Larry Chandler plus news and extensive links to other resources.
- http://www.ivory-bill-woodpecker.com/

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.
- http://www.ibwo.org/

Ivory-bills LIVE!!
- A blog devoted to opinions, news, and commentary on the Ivory-billed Woodpecker.
- http://www.ivorybills.blogspot.com/

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.
- http://www.fws.gov/ivorybill/

Ivory-Billed Woodpecker - The Big Woods Conservation Partnership
- News and information about the discovery of a living ivory-billed in the Big Woods of Arkansas. Includes photos, video, maps, biographies of the discovers, and links to other resources.
- http://www.ivorybill.org/

The Nature Conservancy: Ivory-Billed Woodpecker
- Reports on the rediscovery search, the habitat of the Big Woods, the bird's history, and news.
- http://www.nature.org/ivorybill/

Corante: Reports of My Extinction Are Greatly Exaggerated
- Carl Zimmer's commentary on the rediscovery of the Ivory-bill, including maps of the bird's original range and present habitat range.
- http://www.corante.com/loom/archives/2005/04/28/reports_of_my_extinction_are_greatly_exaggerated.php

Science: Ivory-billed Woodpecker (Campephilus principalis) Persists in Continental North America
- Announcement of confirmed sightings in 2004 and 2005. Full article in PDF format.
- http://www.sciencemag.org/cgi/content/abstract/1114103

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.
- http://www.npr.org/templates/story/story.php?storyId=4622633

Campephilus guatemalensis (Pale-billed Woodpecker)
- Offers sound recordings of this species. Also provides scientific classification.
- http://animaldiversity.ummz.umich.edu/site/accounts/sounds/Campephilus_guatemalensis.html

Crimson-crested Woodpecker (Campephilus melanoleucos)
- Photo at nest site, range, habitat, and life history of this bird.
- http://www.rainforestconservation.org/data_sheets/birds/cc_woodpecker.html

The Search for the Ivory-billed Woodpecker in Louisiana
- Information about an expedition, organized by ornithologist Van Remsen, to search for Campephilus principalis.
- http://www.museum.lsu.edu/~Remsen/IBW.html

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.
- http://www.birdingamerica.com/Ivorybill/ivorybilledwoodpecker.htm