More than a decade has passed since those reports came out, but there still does not exist a sustained conservation program for the Ivory-billed Woodpecker, which is perhaps the most imperiled bird in North America. Despite a report the following year by another group of ornithologists 7, the persistence of the Ivory-billed Woodpecker became controversial when nobody managed to obtain the clear photo that is regarded as the standard form of evidence for documenting birds. ![]() Numerous sightings were reported during the next several decades, but there were no published reports by ornithologists until 2005 6. 1, and a film were obtained during the only study of the Ivory-billed Woodpecker, which took place in the 1930s near the last known nest sites 1, 2. High-quality photos, such as those appearing in Fig. Such programs were established decades ago for the California Condor ( Gymnogyps californianus), Whooping Crane ( Grus americana), and Kirtland’s Warbler ( Setophaga kirtlandii), which might otherwise be extinct by now. In the 1950s, a preserve was temporarily established at a site in Florida following a series of sightings 5, but there has never existed a sustained conservation program throughout the range of this species. ![]() Elusiveness is often essential to survival for individual animals, but this quality has actually impeded the survival of the Ivory-billed Woodpecker ( Campephilus principalis) 1, 2, 3, 4, which is so difficult to find and document that it has been presumed extinct only to be rediscovered several times during the past hundred years.
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