Ivory-billed Woodpecker
Campephilus principalis (Linnaeus, 1758)
The ivory-billed woodpecker was a large woodpecker of southern US and Cuban forests, last undisputed in the United States in 1944 after old-growth bottomlands were logged; the IUCN still lists it as Critically Endangered and possibly extinct, while US authorities have proposed treating it as extinct.
Updated 25 July 2026
- Last undisputed US sighting
- April 1944, Singer Tract, Louisiana
- IUCN status
- Critically Endangered (possibly extinct)
- USFWS position
- Has proposed delisting as extinct
- Confusion species
- Pileated woodpecker — common and similar in silhouette
- Primary habitat
- Mature bottomland hardwood forest
- Nickname
- "Lord God bird" — from the exclamation people supposedly made on seeing one
The ivory-billed woodpecker is the most contested "extinction" on this list — and that uncertainty is the point of the page. The last universally accepted sighting in the United States was in Louisiana's Singer Tract in April 1944, as the old-growth forest that supported the bird was being cut. Decades of later claims, including a high-profile Arkansas announcement in 2005, never produced unequivocal evidence that convinced the whole ornithological community. The IUCN still lists the species as Critically Endangered and possibly extinct. The US Fish and Wildlife Service has proposed removing it from the Endangered Species Act as extinct. This profile treats the bird as functionally gone from confirmed science while stating that disagreement plainly.
Key facts at a glance
- The last undisputed United States sighting was in 1944 on the Singer Tract as logging finished the forest.
- The IUCN has not moved the species to Extinct; it remains Critically Endangered and possibly extinct.
- Post-1944 claims, including Arkansas 2004–05, are disputed and have not produced consensus-level evidence.
- Old-growth bottomland clearance was the decisive habitat loss; collecting added pressure earlier.
- Pileated woodpeckers are the common lookalike that makes unconfirmed sightings hard to trust.
- Living woodpeckers that need large snags and mature forest face a milder version of the same habitat arithmetic.
What is actually agreed
Everyone agrees the ivory-billed woodpecker was a large, black-and-white woodpecker of mature forests in the southern United States and Cuba, and that the Singer Tract population was studied and filmed in the 1930s when only a handful of birds remained. Everyone agrees that tract was logged. The April 1944 sighting by Don Eckelberry is the last record that nearly all authorities accept for the United States. Beyond that line, claims diverge.
Why later sightings did not settle it
Blurry video, brief field views and sound recordings are easy to misattribute when a common pileated woodpecker shares the same woods. The 2005 Cornell-led announcement that the species persisted in Arkansas generated intense search effort and equally intense rebuttal. Without a clear photograph, specimen or sustained, independently verified detection, agencies eventually treated the post-1944 record as insufficient. That is a higher evidence bar than hope wants — and lower drama than headlines prefer.
How to read "possibly extinct"
IUCN's Critically Endangered (possibly extinct) tag is deliberate: the bird meets extinction criteria in practice for many assessors, but the formal Extinct label waits on exhaustive survey standards. USFWS proposing delisting as extinct is a policy judgment that the bird is gone. This page sits with the undisputed timeline — last clear US record 1944, habitat destroyed — while refusing to invent certainty the sources do not share.
Where it lived
Bottomland forests of the southern United States and historically Cuba
The last one
Last universally accepted sighting in the United States: Singer Tract, Louisiana, April 1944 (artist Don Eckelberry). Later claims, including Arkansas 2004–05, remain disputed
What caused it
- 1 Logging of old-growth bottomland forest — especially the Singer Tract
- 2 Shooting and specimen collecting while numbers were already low
- 3 Confusion with the common pileated woodpecker, which complicated late searches
- 4 Habitat fragmentation that left no continuous mature forest large enough for a viable population
What this extinction teaches
Mature-forest specialists disappear when the last continuous stands are cut, and contested late sightings do not replace habitat. Living woodpeckers that need large dead trees and unfragmented woodland are running a slower version of the same clock.
Still here — for now
Still facing the same pressure: Woodpecker
Woodpeckers that depend on mature trees and snags lose breeding sites when forests are simplified — the ivorybill's pressure, scaled down to species still present.
IUCN status: Varies by species — many Least Concern; cavity specialists declining with old trees
Did you know
The nickname "Lord God bird" is itself folklore — a claim that people exclaimed on seeing one — which fits a species whose modern story is as much about belief and evidence standards as about feathers.