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They are aggressive hunters, subsisting primarily on fish and small mammals. Despite its large size and attractive appearance, its habits are not well known. Sea-eagle nests are called aeries, and they are built high in dead or open-topped trees near rivers or on rocky cliffs, up to 100 feet (30 meters) above ground. In 1996-1997, with the support of the Worl… [47], Kleptoparasitism is sometimes recorded within the species. Foto de National Aviary, Pittsburgh: Stellers Sea Eagle - Confira as 27.154 fotos e vídeos reais dos membros do Tripadvisor de National Aviary Despite these protections, human behavior continues to harm the remaining sea-eagle population. The majority of birds winter south of their breeding range, in the southern Kuril Islands, Russia and Hokkaidō, Japan. Dark Steller's sea eagle solves 100 year debate. A sturdy eagle, it has dark brown plumage with white wings and tail, and yellow beak and talons. Juvenile and immatures darker but usually acquire mostly white, wedge-shaped tail in second year. [40] In one case, a Steller's sea eagle was observed feeding on a great albatross (genus Diomedea), a rare vagrant from the sub-Antarctic oceans. You can help us bring Steller’s sea-eagles back from the brink by supporting the San Diego Zoo Global Wildlife Conservancy. [45], Steller's sea eagles hunt most commonly from a perch in a tree or rocky ledge located 5–30 m (16–98 ft) above the water, although they may also hunt on the wing, while circling 6–7 m (20–23 ft) above the water. Around 35% of eagles wintering in Japan move inland and feed largely on mammalian carcasses, predominantly sika deer (Cervus nippon). Thalassaetus pelagicus (Pallas), Steller's sea eagle (Haliaeetus pelagicus) is a large diurnal bird of prey in the family Accipitridae. See more ideas about Steller's sea eagle, Sea eagle, Eagle. Potapov, E., U. Irina, M. McGrady, and D. Rimlinger. [29][35], 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. Select from premium Steller's Sea Eagle of the highest quality. 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. It is reported that, compared with its white-tailed and bald eagle relatives, Steller's sea eagle is a more "aggressive, powerful, and active" raptor. Choose your favorite stellers sea eagle designs and purchase them as wall art, home decor, phone cases, tote bags, and more! We hope that seeing these amazing raptors up close will encourage visitors to participate in the conservation of this rare species. Cambridge, UK: BirdLife International. Eating carrion filled with lead shot from hunters has had devastating effects on the sea-eagle population, leading to the outlawing of lead ammunition on Japan’s Hokkaido Island. niger. Like many of our carnivores, the birds also have fast days where no food is offered so their body can have time to digest the previous meal. The young birds consume about 1 pound (0.4 kilograms) of fish daily by the time they are 5 weeks old. [29] The Steller's sea eagle copulate on the nest after building it. These birds of prey spend much of the warm season in this region, and some stay here year round. The Steller's Sea-Eagle is a massive and powerful raptor of northeastern Asia, this species has wandered a few times to North America, with strays found along the Alaskan coast on occasion. [3][29] In all sea and fish eagles, the toes are relatively short and stout, with the bottom of the foot covered in spicules and the talons being relatively shorter and more strongly curved than in comparably sized eagles of forests and fields, such as the "booted eagle" group (i.e. In inland areas, where golden, bald and white-tailed eagles compete over food sources which are not as abundant as these fish and, more importantly, compete for nesting ranges, aggressive interspecies competition can be more common. Kleptoparasitism is most beneficial in procuring food during periods of food abundance and in large feeding aggregations. The Steller’s sea-eagle was named for a noted 18th-century zoologist and explorer, Georg Wilhelm Steller. BirdLife's online World Bird Database: the site for bird conservation. Steller’s sea-eagles are native to Eastern Russia, so the Zoo’s new aviary was styled after a Russian evergreen forest. Like bald eagles and brown bears, the eagles take full advantage of the annual salmon run to gorge themselves on the spawning and dying fish. [3][18][19][20][21] At its average weight, the Steller's seems to outweigh the average harpy by approximately 500 g (1.1 lb) and the average Philippine eagles by more than 1,000 g (2.2 lb). Young eagles get a satellite leg tag so researchers can track its movement. Research efforts began in 1992, at Russia’s Magadan State Nature Reserve. [40] While pink and chum salmon average approximately 2,200 and 5,000 g (4.9 and 11.0 lb) in mature mass, respectively, Steller's sea eagle not infrequently preys on fish up to 6,000 to 7,000 g (13 to 15 lb). [3] The feet are very powerful despite not bearing talons as long as those of a harpy eagle. [52] In one case, a cinereous vulture (Aegypius monachus), the largest living accipitrid, was observed to be pursued in flight and kleptoparasitized by a Steller's sea eagle. [38] On Kamchatka, aggregations of as many as 700 eagles have been reported, though much smaller groups are the norm. The chicks are altricial and covered in whitish-down on hatching. This resource supports an important commercial fishery which in turn helps to support eagles. Click here to return to the species description page . [3][19][22] Steller's sea eagle can range in total length from 85 to 105 cm (2 ft 9 in to 3 ft 5 in), apparently males average about 89 cm (2 ft 11 in) in length, while females average about 100 cm (3 ft 3 in), marginally shorter on average than the harpy eagle and about 65 mm (2.6 in) shorter than the Philippine eagle. On Kamchatka, eagles overwinter in forests and river valleys near the coast, but are irregularly distributed over the peninsula. For the most part, birds used known wintering grounds. [12][38], Steller's sea eagle mainly feeds on fish. [3], The downy plumage of chicks is silky white on hatching, though it soon turns a smoky brown-grey. Steller's Sea Eagle The expedition was shipwrecked amid storms, and despite Steller’s best efforts, Bering and much of the crew died on what became known as Bering Island. Steller’s Sea Eagle; Location: Russia, Japan, East Asia Wingspan: 2.45 m (8 ft 2 in) average Weight: 6,195 to 9,500 g (13.658 to 20.944 lb) Length: 85 to 105 cm (2 ft 9 in to 3 ft 5 in) Source: Francesco Veronesi [CC BY-A 2.0] via Flickr. Steller's sea eagle is part of WikiProject Birds, an attempt at creating a standardized, informative and easy-to-use ornithological resource.If you would like to participate, visit the project page, where you can join the discussion and see a list of open tasks. In groups, migrants are typically observed flying 100–200 m (330–660 ft) apart. [38], This species is classified as vulnerable by the IUCN. On Kamchatka, most migrants are birds in transitional plumages. 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