White-tailed eagle (Haliaeetus albicilla) are also known as eagle of the rain, sea grey eagle, erne, gray eagle, and white-tailed sea-eagle. Is a bird of prey in the family Accipitridae. The white-tailed eagle is a very large bird. It measures 66–94 cm (26–37 in) in length with a 1.78–2.45 m (5.8–8.0 ft) wingspan. The wingspan, with a midpoint of 2.18 m (7.2 ft), is on average the largest of any eagle.