Any one of several species of fish-eating eagles of the genus Haliaeetus and allied genera, as the North Pacific sea eagle. (H. pelagicus), which has white shoulders, head, rump, and tail; the European white-tailed eagle (H. albicilla); and the Indian white-tailed sea eagle, or fishing eagle (Polioaetus ichthyaetus). The bald eagle and the osprey are also sometimes classed as sea eagles.