New evidence for the ivory-bill?

Nice job by Loren Coleman of reporting on a new professional publication analyzing what appear to be audio recordings of an ivory-bill from the Pearl River ares of Louisiana. This was the area of a famous sighting, which held up to expert analysis, by Dennis Kulivan in 1999.
COMMENT: I am hardly an expert on bird calls, but this is certainly intriguing. I thought the famous Arkansas video was identified accurately as an ivory-bill, and some evidence from Louisiana and Florida was very good. If I had to guess, though, the bird is functionally extinct: reduced to a handful of individuals so scattered they can never re-form a viable population. I sure hope I'm wrong.