Comment on "Ivory-billed Woodpecker (Campephilus principalis) Persists in Continental North America"

  title={Comment on "Ivory-billed Woodpecker (Campephilus principalis) Persists in Continental North America"},
  author={David Allen Sibley and Louis R. Bevier and Michael A. Patten and Chris S. Elphick},
  pages={1555 - 1555}
We reanalyzed video presented as confirmation that an ivory-billed woodpecker (Campephilus principalis) persists in Arkansas (Fitzpatrick et al., Reports, 3 June 2005, p. 1460). None of the features described as diagnostic of the ivory-billed woodpecker eliminate a normal pileated woodpecker (Dryocopus pileatus). Although we support efforts to find and protect ivory-billed woodpeckers, the video evidence does not demonstrate that the species persists in the United States. 
Costs and benefits of ivory-billed woodpecker “re-discovery”
Several years ago, the purported re-discovery of the ivory-billed woodpecker (Campephilus principalis) in eastern Arkansas generated lively discussion in renowned scientific journals. The debate
Multiple lines of evidence indicate survival of the Ivory-billed Woodpecker in Louisiana
The history of decline of the Ivory-billed Woodpecker is long, complex, and controversial. The last widely accepted sighting of this species in continental North America was 1944. Reports of
Search Efforts for Ivory-Billed Woodpecker in South Carolina
Abstract - Following the reported rediscovery of Campephilus principalis (Ivory-billed Woodpecker) in Arkansas, we initiated searches in South Carolina in February 2006, with additional searches in
Evidence Suggesting that Ivory-billed Woodpeckers ( Campephilus principalis ) Exist in Florida
The evidence suggests that Ivory-billed Woodpeckers may be present in the forests along the Choctawhatchee River and warrants an expanded search of this bottomland forest habitat.
Timeless standards for species delimitation.
Recently a new species of bombyliid fly, Marleyimyia xylocopae, was described by Marshall & Evenhuis (2015) based on two photographs taken during fieldwork in the Republic of South Africa. This
Credibility, evidence and discovery: the case of the ivory-billed woodpecker
This paper discusses an effort to document the rediscovery of a North American bird that was widely believed to be extinct. In April 2005 a team of researchers announced publicly that they had
Film Documentation of the Probably Extinct Imperial Woodpecker (Campephilus imperlalis)
ABSTRACT. The Imperial Woodpecker (Campephilus imperialis) of Mexico—the largest woodpecker in the world—probably became extinct in the late 20th century, without known documentation of the species
Putative audio recordings of the Ivory-billed Woodpecker (Campephilus principalis).
  • Michael D. Collins
  • Environmental Science
    The Journal of the Acoustical Society of America
  • 2011
High-pitched calls seem to match the description of an alarm call that was reported in the 1930s and information on audio clues could have an impact on its conservation.
An Arkansas Parable for the Anthropocene
  • M. Gandy
  • Environmental Science
    Annals of the American Association of Geographers
  • 2021
The claimed rediscovery of North America’s rarest bird, the ivory-billed woodpecker, in the early 2000s, was one of the most high-profile events in global ornithological history. The reappearance of


Ivory-billed Woodpecker (Campephilus principalis) Persists in Continental North America
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
Birds of North America
Handbook of North American BirdsEdited by Ralph S. Palmer. Vol. 1: Loons through Flamingos. Pp. vii + 567 + 6 plates. (New Haven, Conn., and London: Yale University Press, 1962.) 105s.
  • Auk
  • 2006
Supporting Online Material
  • DC1 Materials and Methods SOM Text Figs. S1 and S2 References
  • 1126
The Grail Bird: Hot on the Trail of the Ivory-billed Woodpecker
  • 2005
The Race to Save the
  • The Race to Save the
  • 2004