Here and
here.
Update 1--When I first read Cornell's summary, I didn't notice this paragraph:
The U.S. Fish and Wildlife Service, which supports searches throughout the southeast, agrees there’s more to be done. "It is imperative we continue with searches for the Ivory-billed Woodpecker," said Chuck Hunter, Regional Refuge Biologist. "Enough credible evidence continues to come to our attention that leads the Service to believe several isolated pairs or very small populations may still exist."
Update 2--I just checked again, and another "new" paragraph seems to have appeared:
The Nature Conservancy is another key player in the ivory-bill search and in the effort to preserve bottomland forest habitat. Allan Mueller, avian conservation project manager for The Nature Conservancy in Arkansas, says, "The 2006-07 search for the Ivory-billed Woodpecker in Arkansas was another season of easy cooperation between the members of the Big Woods Conservation Partnership. While we did not come up with the 'iron-clad' evidence, we did discover new promising locations to search and again produced tantilizing evidence of this great bird's continuing presence."
Update 3--A Birdforum poster provides some analysis
here.