 "Eagles" are several raptors that are not necessarily closely related, but can be broadly defined by large body size (larger than other raptors excluding vultures) and the taking of typically larger prey, including mid-sized mammals and larger birds.The most diverse group of eagles is the "booted eagles", a variable group of c. 30 species, defined by their feathering covering their legs (shared by only a couple of buteonine species).Most accipitrids usually hunt prey rather smaller than themselves.