title: Ivory-billed woodpecker (Campephilus principalis) persists in continental North America.
abstract: The ivory-billed woodpecker (Campephilus principalis), long suspected to be extinct, has been rediscovered in the Big Woods region of eastern Arkansas. Visual encounters during 2004 and 2005, and analysis of a video clip from April 2004, confirm the existence of at least one male. Acoustic signatures consistent with Campephilus display drums also have been heard from the region. Extensive efforts to find birds away from the primary encounter site remain unsuccessful, but potential habitat for a thinly distributed source population is vast (over 220,000 hectares).
authors.affiliation: Cornell Laboratory of Ornithology, Cornell University, 159 Sapsucker Woods Road, Ithaca, NY 14850, USA. jwf7@cornell.edu
authors.forename: John W
authors.initials: JW
authors.lastname: Fitzpatrick
authors.forename: Martjan
authors.initials: M
authors.lastname: Lammertink
authors.forename: M David
authors.initials: MD
authors.lastname: Luneau
authors.forename: Tim W
authors.initials: TW
authors.lastname: Gallagher
authors.forename: Bobby R
authors.initials: BR
authors.lastname: Harrison
authors.forename: Gene M
authors.initials: GM
authors.lastname: Sparling
authors.forename: Kenneth V
authors.initials: KV
authors.lastname: Rosenberg
authors.forename: Ronald W
authors.initials: RW
authors.lastname: Rohrbaugh
authors.forename: Elliott C H
authors.initials: EC
authors.lastname: Swarthout
authors.forename: Peter H
authors.initials: PH
authors.lastname: Wrege
authors.forename: Sara Barker
authors.initials: SB
authors.lastname: Swarthout
authors.forename: Marc S
authors.initials: MS
authors.lastname: Dantzker
authors.forename: Russell A
authors.initials: RA
authors.lastname: Charif
authors.forename: Timothy R
authors.initials: TR
authors.lastname: Barksdale
authors.forename: J V
authors.initials: JV
authors.lastname: Remsen
authors.forename: Scott D
authors.initials: SD
authors.lastname: Simon
authors.forename: Douglas
authors.initials: D
authors.lastname: Zollner
mesh_terms: D000818:Animals; D001131:Arkansas; D005075:Biological Evolution; D001717:Birds; D003247:Conservation of Natural Resources; D004463:Ecology; D008297:Male; D014741:Video Recording