Other evidence included nine additional sightings and more than 100 recordings of what researchers believe may be ivory-bill sounds.The article's author is Ron Nargang, state director of the Nature Conservancy in Minnesota. The New York Times quotes were attributed to Richard Prum in an August 1, 2005 article.
Even those most skeptical now agree the ivory-bill exists in Arkansas. Three scientists had announced they were producing a paper refuting the evidence; after being provided a response prepared by Cornell and other scientists and after hearing some of the best recordings, two of them withdrew their paper.
One was quoted in the New York Times as saying, "The thrilling new sound recordings provide clear and convincing evidence that the ivory-billed woodpecker is not extinct."
He said he was "strongly convinced that there is at least a pair of ivory bills out there."
I think it's preposterous to claim Richard Prum as an Ivory-bill believer as of February 2006. He's been publicly skeptical for months, as shown here, here, and here.