Steller's sea eagle (Haliaeetus pelagicus) is a large diurnal bird of prey in the family Accipitridae. It was originally described by Peter Simon Pallas in 1811. No subspecies are recognized. A sturdy eagle, it has dark brown plumage with white wings and tail, and yellow beak and talons. On average, it is the heaviest eagle in the world, at about 5 to 9 kg (11 to 20 lb), but may be below the harpy eagle (Harpia harpyja) and Philippine eagle (Pithecophaga jefferyi) in some standard measurements. It lives in coastal northeastern Asia and mainly preys on fish and water birds. The Kamchatka Peninsula in Far Eastern Russia is known for its relatively large population of these birds. Around 4,000 of these eagles live there. Steller's sea eagle is listed as vulnerable on the International Union for Conservation of Nature (IUCN)'s Red List of Threatened species. Steller's sea eagle breeds on the Kamchatka Peninsula, the coastal area around the Sea of Okhotsk, the lower reaches of the Amur River and on northern Sakhalin and the Shantar Islands, Russia. The majority of birds winter south of their breeding range, in the southern Kuril Islands, Russia and Hokkaidō, Japan. The Steller's sea eagle is less prone to vagrancy than the white-tailed eagle, as it lacks the long-range dispersal typical of juveniles of that species, but vagrant eagles have been found in North America, at locations including the Pribilof Islands and Kodiak Island, and inland in Asia to as far as Beijing in China and Yakutsk in Russia's Sakha Republic, and south to as far as Taiwan.
- It played Announcer for Pacha in The Mallard's New Groove
- It played Pteranodon in RUSSIAN ANIMAL
- It played Bald Eagle (same genus) in Brother Tiger (Samwei1234 Version)
- It played The Mayor of Townsville in The Powerpuff Eagles, The Powerpuff Eagles Movie, and The Powerpuff Eagles (2016)
- It played Dimophodon in Safari World
- It played Rikki (Mermaid) in Mako Eagles
- It played Otto in Super Robot Eagle Team Hyperforce Go!
- It played Cynthia (Mermaid) in MerEagles (2003)
- It played Boogie Gus in Totally Piscivores
- It played Mandy in Totally Eagles