Thousands of years ago, rising sea levels isolated much of the Florida peninsula as an island. During that long isolation, a unique oak-scrub ecosystem developed. The Florida Scrub-Jay is one of many special animals and plants that evolved with this habitat. Because they depend on acorns during winter, Florida Scrub-Jays can survive only in oak scrub. Populations have declined because the birds have lost much of their special habitat to citrus groves, pastures, and development. Happily, many birds are now protected by the Archbold Biological Station and other preserves. But there's still more to be done! Learn more at BirdNote.org.