The Steller's Sea Eagle, Haliaeetus pelagicus, is a large bird of prey in the family Accipitridae. It lives in coastal northeastern Asia and mainly preys on fish. On average, it is the heaviest eagle in the world, at about 5 to 9 kilograms (11 to 20 lb; 0.79 to 1.4 st), but may lag behind the Harpy Eagle (Harpia harpyja) and Philippine Eagle (Pithecophaga jefferyi) in some standard measurements.

Steller's Sea-eagle is the biggest bird in the genus Haliaeetus and is one of the largest raptors overall. Females typically weigh from 6.8 to 9 kilograms (15 to 20 lb; 1.07 to 1.4 st), while males are rather lighter with a weight range from 4.9 to 6 kilograms (11 to 13 lb; 0.77 to 0.94 st). At its average weight, the Steller's outweighs both the average Harpy and the average Philippine Eagles by over 0.5 kilograms (1.1 lb; 0.079 st). The Steller's Sea Eagle's length can range from 85 to 105 cm (33 to 41 in). The wingspan is from 1.95 to 2.5 m (6.4 to 8.2 ft) and the wing chord measurement is 57–68 cm (22–27 in). The Steller's sea eagle has the second largest median wingspan of any eagle. Both the wing chord and wingspan, at an average of 2.13 m (7.0 ft), are similar or slightly smaller than to those of the Steller's close relative, the White-tailed Eagle (Haliaeetus albicilla), which is rather smaller in both weight and total length.As in most Haliaeetus eagles, the tarsus and the tail in this species are relatively short compared to other very large eagles at 9.5–10 cm (3.7–3.9 in) and 32–34.5 cm (13–13.6 in) in length, respectively. The bill is very large. In fact, the skull (at around 14.6 cm (5.7 in)) and the culmen (at around 7 cm (2.8 in)) of the Steller's Sea Eagle are the largest of any eagle and are comparable in size to those of the largest accipitrids, the Old World vultures.

I was surprised to find, and take the picture of this bird in a mountaneous inland area.

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