DAZ also has an eagle expansion pack (turns the eagle into 24 different birds of prey) and an animation set. If you purchase the eagle, be sure to visit bloodsong's 3D Menagerie and Lannie's 3D Model World for all manner of free eagle morphs, textures, and related accessories.

Vista Internet Products sells a number of bird species by Lyne Masamitsu and Debra Ross (ducks, hawks, falcons, seagulls, parrots, macaws, parakeet, toucan, raven/crow, songbirds, flamingo, pelican, canary, finch, owl, and another eagle).