From publisher blurb:
Warriors of the Wild is a fantasy d20 product line designed for both players and game masters. It offers well-balanced and thoroughly play-tested classes constructed around various animal, natural, and tribal themes. These classes are perfect for any combat-heavy game, be it in dungeons, cities, the wilderness, or other planes.
This product features the bird of prey, a prestige class with requirements and abilities flexible enough to suit any martial or roguish character. Birds of prey have been blessed with strong, functional wings. Like great raptorial birds, they swoop down on their enemies, strike, and fly back to safety.