You also have the option to opt-out of these cookies. [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. niger. Males and females look the same, but mature females are about 25% larger than males. Migrants tend to follow sea coasts and are usually observed flying singly. They are legally protected, being classified as a National Treasure in Japan and mostly occurring in protected areas in Russia. [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. Steller's Sea Eagle, 250 cm (98.4 inches) Steller’s sea eagle is one of the largest birds of prey found … The wingspan of an eagle is correlated to the wing function and the environments where an eagle lives. Tingay, R. E., & Katzner, T. E. Kleptoparasitism is most beneficial in procuring food during periods of food abundance and in large feeding aggregations. These mainly include habitat alteration, industrial pollution, and overfishing, which in turn decrease their prey source. [41] Common and thick-billed murres (Uria aalge and U. lomvia, respectively) dominated the diet around the Sea of Okhotsk, followed by black-legged kittiwakes (Rissa tridactyla), slaty-backed gulls, crested auklets (Aethia cristatella), and pelagic cormorants (Phalacrocorax pelagicus). [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. [3] This sea eagle may supplement its diet with various mammals (especially hares[3][29]), crabs, mussels, Nereis worms and squid when given the opportunity. The only extant eagle species known to be more massiv… A field guide to the Birds of Korea (2005). (Abstract) Source-sink populations of the Steller's Sea Eagles (. Travel Canoe 16. starting at $1,849 In Stock. Version 2.0. The adult male is about 90 cm (36 inches) long and has a wingspan of 2 metres (6.6 feet). [46] Outside the breeding period, these eagles probably roost communally near their feeding sites. Not only the worlds biggest Sea Eagle but, also one of the biggest Eagles in the world. Females of the large Himalayan golden eagles are about 37% heavier than males and have nearly 9% … [11] It is also known as Steller's fish eagle, Pacific sea eagle or white-shouldered eagle. Wingspan With 254 cm wide, the Steller’s Sea Eagle has the longest wingspan, followed by the White-tailed Eagle (244 cm) and the Wedge-tailed Eagle (232 cm). The eagle watchers: Observing and conserving raptors around the world. Out of these cookies, the cookies that are categorized as necessary are stored on your browser as they are essential for the working of basic functionalities of the website. It lives in coastal northeastern Asia and mainly preys on fish and water birds. However, a video from Russia shows a juvenile Steller's sea eagle aggressively displacing an adult from food during a protracted battle. [3][12][23] The sea eagle's wingspan is one of the largest of any living eagle, at a median of 2.13 m (7 ft 0 in) per Ferguson-Lees (2001) or a median of 2.2 m (7 ft 3 in) per Saito (2009). starting at $899 expected 12/11. [4] Steller's sea eagle is listed as vulnerable on the International Union for Conservation of Nature (IUCN)'s Red List of Threatened species. [47], Kleptoparasitism is sometimes recorded within the species. [29][40] Smaller mammals have also been recorded as prey, including northern red-backed vole (Clethrionomys rutilus) and tundra vole (Microtus oeconomus). Excluding the Asian black bear (Ursus thibetanus), which has not thus far been recorded as a predator, no other mammalian carnivores are equal to or greater than the eagle's size which can climb trees in the species' range. [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. The bold color patterns of adults may be an important signal influencing the formation of feeding groups. [40] Like most Haliaeetus eagles, they hunt fish almost exclusively in shallow water. [40][24], Mammalian carnivores are apparently readily hunted. When salmon and trout are dying in winter after their summer spawning, feeding groups of Steller's sea eagles may mix with smaller golden eagles (Aquila chrysaetos) and white-tailed eagles to exploit this food source. [41] They also show a strong local preference for slaty-backed gulls (Larus schistisagus). [12][29], Courtship, which usually occurs between February and March, and reportedly simply consists of a soaring flight above the breeding area. (2010). With its long broad wings and longish tail, it has a different outline to the smaller buzzard. Juvenile plumage is largely a uniform dark soot-brown with occasional grey-brown streaking about the head and the neck, white feather bases, and light mottling on the rectrices. Its large size (wingspan of over a metre) distinguishes it from other hawks, however it is considerably smaller than an eagle, with which it is often confused. "Steller's sea eagle" has been designated the official name by the International Ornithologists' Union (IOC). Golden eagles' wingspan is the fifth largest among living eagle species. Another 600 pairs occur in the lower Amur. Eagles sometimes hunt by standing in or near shallow water on a sandbank, spit, or ice-flow, grabbing passing fish. Usually, only one chick survives to adulthood, though in some cases as many as three will successfully fledge. 420x Explorer. A sturdy eagle, it has dark brown plumage with white wings and tail, and yellow beak and talons. All three have yellow eyes, beaks, and talons, unlike their next-closest relative, Pallas's fish eagle. [3][29] As in all fish and sea eagles, as well as the majority of the world's fish-eating raptors, Steller's sea eagle has spicules, which are bumpy waves all along the bottom of their feet, which allow them to hold fish that may otherwise slip out of their grasp. [12] In Korean, the eagle is called chamsuri (true eagle). [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). [41] Persecution of the bird in Russia continues, due to its habit of stealing furbearers from trappers. [17], First and intermediate plumages are difficult to distinguish from those of the white-tailed eagle, which co-occurs in the entire breeding range of the Steller's. [12] Alaska pollock (Gadus chalcogrammus), along with the cod, is the most important food source for wintering eagles in Japan. Wildlife & Nature Their diamond-shaped, white tails are relatively longer than those of the white-tailed eagle. [31] In coastal areas, nesting eagles may feed on Bering wolffish (Anarchichas orientalis), Hemitripterus villosus, smooth lumpfish (Aptocyclus ventricosus) and Myoxocephalus spp.


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