Depending on the…. classification Difference Between Steller’s Sea Eagle and Harpy Eagle: Both the species of eagles have a compelling physical description. The birds may not even breed until much later. The team was surprised to discover the extent of persecution these birds are exposed to, despite the species’ protected status throughout its range. Like all raptors, they clamp onto prey with talons as sharp as switchblades and cannot let go until the prey is dead. Adults have a mostly blackish-brown plumage with some paler streaking. This eagle builds several large nests (referred to aeries) that are about 150 cm tall and have a diameter of up to 150 cm. It is not uncommon for a nest to grow so heavy that the branches it sits on break, and the nest comes crashing to the ground. These birds are endangered and only about 4,200 breeding pairs are believed to exist worldwide. Conservation: This rare and vulnerable bird has been given complete legal protection in Russia, the only place it breeds, and in Japan, where it overwinters. The young learn to fly when they are about 10 weeks old. Stellers' Sea-eagle measure 86.5 - 105 cm (34.1 - 41.3 in) in length (including the tail) and have a wingspan of about 203 - 241 cm (80 - 95 in). Eagles and humans: Steller’s sea-eagles are a vulnerable species and have been given complete legal protection in Russia, the only place it breeds, and in Japan, where it overwinters. The skull and bill are the largest of any eagle. They inhabit seacoasts and rivers and is often seen perching on sea cliffs or trees waiting to swoop down on its prey, which is mostly fish, although they will also take small mammals. Steller's sea eagle is the largest bird in the genus Haliaeetus and is one of the largest raptorsoverall. Steller's Eagles are believed to have a lifespan of about 20 years or more. Japan responded to this hazard by banning lead bullet use throughout the sea-eagles’ range within their country. Usually only one chick survives. Still much to learn: Very little is known about these eagles, especially their early years. starting at $899 expected 12/11. They will also take water-dwelling birds, such as ducks, geese, swans and gulls); as well as preying on mammals, young seals, crabs, squid and carrion. Steller was the first documented European naturalist to step foot in (what would become) Alaska in July 1741. Criteria: C2a(ii) Click here for more information about the Red List categories and criteria Justification of Red List category This species has a small, regionally declining population as a result of habitat degradation, pollution, poisoning by lead shot, and over-fishing. The hatchlings are covered with an ash-grey to white down and brown feathers start growing when they are a couple of weeks old. Travel Canoe 16. starting at $1,849 In Stock. It is believed that they are glacial relics that evolved in the … Common Name: Steller's Sea-Eagle, Steller's Sea Eagle, Pacific Eagle, White-Shouldered Eagle, Mottled Sea Eagle, Great Eagle; Lifespan: 20-25 years; Size: 35-40 inches; Weight: 11-20 pounds; Wingspan: 75-90 inches; Conservation Status: Vulnerable Lifespan. Steller's Sea-eagles mostly feed on fish, favoring salmon, trout and cod. It is only provided for educational and entertainment purposes, and is in no way intended as a substitute for The San Diego Zoo has a pair of Steller’s sea-eagles and has loaned pairs of birds to four other zoos in the US. 380x Explorer. However, overfishing can impact the birds’ habits, forcing wintering birds to look inland for food. Their eyes are dark brown and their bills are orange. Median Life Expectancy: Unknown in the wild, but the Steller's sea eagle's longevity is thought to be similar to its relative, the white-tailed eagle, whose lifespan is 20-25 years. At the San Diego Zoo, our Steller’s sea-eagles are fed rabbits, rats, and fish on rotating days. Distribution/Range. Females vary in weight from 6,195 to 9,500 g (13.658 to 20.944 lb), while males being rather lighter with a weight range of 4,900 to 6,800 g (10.8 to 15.0 lb). The skull and bill are the largest of any eagle. 420x Explorer. In Japan, sea-eagles eat both fish and carrion. The average weight is variable, possibly due to seasonal variation in food access or general condition of eagles, but has been reported as high as a mean mass of 7,757 g (17.101 lb) to a median estimate weight of 6,250 g (13.78 lb), excluding expired eagles … Learn More. These eagles have even been seen standing in shallow water or on the ice, grabbing fish as they swim by. The nests are placed high up on trees and rock. A very rare raptor: One of the rarest raptors in the world, very little is known about Steller’s sea-eagles, due to the remote nature of their primary habitat, the rocky seacoasts and rivers of northeastern Siberia in Russia. The ground crew measures, weighs, and takes tissue samples from the bird. Together we can save and protect wildlife around the globe. Please contact them directly with respect to any copyright or licensing questions. Adult is striking, even from a great distance: rich brown overall, with snow-white tail, belly, and shoulder patches. Please contact them directly with respect to any copyright or licensing questions. Lifespan-Steller’s sea eagle lifespan is 20 years or more. Steller's Sea-eagles mostly feed on fish, favoring salmon, trout and cod. Steller’s sea-eagles make a deep barking cry, ra-ra-ra-raurau. The birds spend much of their day perched on sea cliffs or trees, their “eagle eyes” on the lookout for food, ready to swoop in on a hapless victim. The Steller's Sea Eagles (Haliaeetus pelagicus) - were named after the 18th-century German explorer and zoologist Georg Wilhelm Steller. This diurnal, fish-eating raptor mainly eats salmon and trout. You can help us bring Steller’s sea-eagles back from the brink by supporting the San Diego Zoo Global Wildlife Conservancy. Many others migrate slightly southward for the winter to the southern Kuril Islands and to Hokkaido, Japan, where food is more plentiful, but that's it—this is the only region of the world where this eagle is found! Females are usually heavier, weighing6.8 to 9 kilograms (15 to 20 lbs), while males weigh from 4.9 to 6 kilograms (11 to 13 lbs). During breeding season, they make calls that sound like very loud seagulls. Steller’s sea eagle is the world heaviest eagle which weighs from 5 kg to 9.5 kg, although harpy eagle is also weighs same as steller’s sea eagle but on average weight basis steller’s sea eagle is the heaviest one. 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