Once again, scientists report they have found evidence of ivory-billed woodpeckers, this time in Florida. But having observed the turbulent disputes among ornithologists and birders that followed the report last year that the bird had been found in Arkansas, these researchers are proceeding with caution. Geoffrey Hill, of Auburn University in Alabama, and Daniel Mennill of the University of Windsor, in Ontario, both biologists and ornithologists, say 14 sightings and extensive sound recordings “provide evidence that ivory-billed woodpeckers may live along the Choctawhatchee River in the Florida Panhandle.” The report appears online in a Canadian journal, Avian Conservation and Ecology...