Eagle. A bird of prey, of the genus falco, of which there are several species; as the sea eagle, known in Scotland and Ireland, which feeds on fish; the golden eagle, three feet long, with wings extending above seven feet, which devours fawns, lambs, kids, etc., and lives to a great age; the cinereous eagle, common in the mountains of Europe; the crying or plaintive eagle, of Siberia and Asia and also the bald or white-headed eagle, which preys on flesh and fish. The talons and bills of all the species are strong and terrible, and their sight is keen and distant.