An eagle may also be called a "bird of prey," "a raptor," or an "accipitrid." Bird of prey and raptor are often treated as synonymous, although raptors are defined as having specific traits that make their bodies well prepared for hunting and consuming prey.
Bird of prey is the most general of these terms, and includes all species within the orders Falconiformes and Strigiformes. Many other bird species prey upon insects or fish, but birds of prey share distinct differences and have a closer familial relationship to each other. Raptors have keen eyesight, hooked beaks, sharp talons and carnivorous diets. Accipitrids are birds of the family Accipitridae, which includes all eagle species and their closest sister species: the hawk.