Any large, rapacious bird of the Falcon family, esp. of the
   genera Aquila and Haliaeetus. The eagle is remarkable for strength,
   size, graceful figure, keenness of vision, and extraordinary flight.
   The most noted species are the golden eagle (Aquila chrysaetus); the
   imperial eagle of Europe (A. mogilnik / imperialis); the American bald
   eagle (Haliaeetus leucocephalus); the European sea eagle (H.
   albicilla); and the great harpy eagle (Thrasaetus harpyia). The figure
   of the eagle, as the king of birds, is commonly used as an heraldic
   emblem, and also for standards and emblematic devices. See Bald eagle,
   Harpy, and Golden eagle.