The Nature Conservancy released a report (pdf) showing that the numbers of Florida scrub jays are in decline, even on preserves designed to protect the birds. The Lakeland Ledger has an article on the report here. The scrub jay is the only species of bird found exclusively in Florida. The birds have been protected under the Endangered Species Act since 1987, when they were declared a threatened species. One of the perceived causes for the decline in numbers deal with the lack of controlled burns that keep the jays' habitat suitable.