[3][20] The Steller's sea eagle's absolute maximum wingspan is less certain; many sources place it at up to 2.45 m (8 ft 2 in). These eagles are exceptionally vocal for raptors and have a throaty, raspy bark-like call that sounds much like typical gull calls. [24][25] However, less substantiated records indicate that it may also reach even greater wingspans. Just their sheer size and the remoteness of where they are located. And, like other eagles, Steller’s sea-eagles also steal food from other birds; this is known as kleptoparasitism. Newborn eaglets are initially a very silky white, which quickly turns to a brownish-grey color within a few weeks. [21][29] The young Steller's sea eagle has a dark brown iris, whitish legs, and blackish-brown beak. [12], Saito, K. (2009). Steller's sea eagles do not occur in large numbers, but their populations appear to be stable. The easiest way to find these birds is to opt for a dedicated tour that includes birding and wildlife watching. [41] Persecution of the bird in Russia continues, due to its habit of stealing furbearers from trappers. [12] In summer, live fish, typically in the range of 20 to 30 cm (7.9 to 11.8 in) in length, are fed to the young at the nest. Despite these protections, human behavior continues to harm the remaining sea-eagle population. Steller’s feed on a variety of food but fish is their most common meal. Vagrant sightings are rare because these raptors do not move great distances, but they are occasionally recorded as far east as Alaska and as far south as Taiwan. Jonah Thorn from In the Clouds on December 17, 2012: I completely agree, well written hub! Hopefully you have an opportunity to see a Steller's while you are there. Bill De Giulio (author) from Massachusetts on December 13, 2012: Keala, Always a pleasure to have you stop by for a visit. That white patch is visible both on top and beneath the wings in flight, and in bright light can make the wings look narrow or unbalanced. Of the three I think the Harpy comes in third although they are very powerful and can crush a monkeys skull with their talons. Annual salmon runs provide an enormous bounty and Steller's sea eagle nests are typically located near coasts and rivers where these fish appear en masse. The head is black-brown with white frosting on the crown and nape and a small white patch on the forehead. The Steller’s sea-eagle is often easy to spot, with its dark body; white forehead, shoulders, tail, and thighs; and bright-yellow bill. by the way i try to visit panama last year i have seen harpy eagle and its huge bird the largest in their foundation is a female weighting 8 kgs 106 cm and 7 feet wingspan. Cornell University Press.
The total population is around 3,200 breeding pairs. Perhaps next summer I will try. Any of these small, clever nest predators rely on distraction and stealth to prey on the eagle's nests and are killed if caught by either of the parents. Potapov, E., U. Irina, M. McGrady, and D. Rimlinger. Due to nests collapsing under their own weight and egg predation only about half to two-thirds of eggs successfully reach adulthood. They are huge and I love to look at their talons. I have not seen the Harpy in person and would love to see one up close. 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,[36][37] 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. Great information, Bill. I really enjoy writing about these amazing birds. By Markus Riesenseeadler via Wikimedia Commons. In one case, two active nests were found to have been located within 100 m (330 ft). Eaglets are covered in white down, but as they mature, juvenile birds develop darker, more uniform brown-black plumage. The Stellers sea-eagle is often easy to spot, with its dark body; white forehead, shoulders, tail, and thighs; and bright-yellow bill. You can find many lists of the top 10 largest eagle species and they will all be different. Chicks are altricial, with downy gray-white feathers that gradually change to brown. [3][29], Eggs and very small nestlings can be preyed on by arboreal mammals, such as sables and ermine, and birds, usually corvids. "Philippine Birds of Prey: Interrelations among habitat, morphology and behavior", Steller’s Sea Eagle – The Cincinnati Zoo & Botanical Garden, Japan's Winter Wildlife Zoom In @ National Geographic Magazine, "Steller's sea eagle videos, photos and facts – Haliaeetus pelagicus", Diet of the Steller’s Sea Eagle in the northern Sea of Okhotsk, "Seasonal change in habitat use in Steller's sea eagles", "Kamatchka:Golden Eagle fights Steller's Sea Eagle", Steller's sea eagle photo – Haliaeetus pelagicus – G113853, The Secret Lives of Sea Eagles – National Wildlife Federation, Photo Keywords : steller's sea eagle : White-tailed Eagle and Steller's Sea Eagle, https://en.wikipedia.org/w/index.php?title=Steller%27s_sea_eagle&oldid=982023926, Articles with Russian-language sources (ru), Pages using multiple image with auto scaled images, Creative Commons Attribution-ShareAlike License, This page was last edited on 5 October 2020, at 19:19. Courtship occurs during late winter, and the female starts laying greenish white eggs in mid-spring. They are considered one of the largest of all eagles species along with the Philippine Eagle and the Harpy Eagle. Slightly smaller in dimensions than the Harpy Eagle of Central and South America and the Philippine Eagle, the Steller’s Sea Eagle lives in the coastal regions of northeastern Asia. Like other raptors, sea eagles clamp onto their prey with their sharp talons, not releasing their catch until it’s dead. 3. [49][50][51] In other cases, though, the three eagle species have been observed to feed in close proximity and seem to be outwardly indifferent to each other's presence. Hawaiian Odysseus from Southeast Washington state on December 13, 2012: Absolutely delightful, Bill!
We hope that seeing these amazing raptors up close will encourage visitors to participate in the conservation of this rare species. The nests are seldom built far from the shoreline, which puts the eagles in proximity to the fish that make up the bulk of their diet. [43] In winter, immature Steller's sea eagles may frequent slaughterhouses to pirate bits of offal. This one in particular I found fascinating. The San Diego Zoo received its first Steller’s sea-eagle in 1953 as a gift from a Japanese ornithologist. Females vary in weight from 6,2 to 9,5 kg (13.5 to 21 lb), while males being rather lighter with a … The harpy eagle is one of the largest specie of eagle in the world, the philippine eagle is the only living eagle to surpass it in size hence it is larger than the harpies. I would love to see one also. A pair of Steller’s sea-eagles lives in an aviary along the Zoo’s Eagle Trail. Great relatives of the Steller's sea-eagle include: Don't miss any of our other wild bird fact sheets and profiles to learn about other popular raptors and different bird species!
[12] Alaska pollock (Gadus chalcogrammus), along with the cod, is the most important food source for wintering eagles in Japan. In one case, a brown bear (Ursus arctos) was able to access a nest located on a rock formation and ate a fledgling eaglet, though this is believed to be exceptional. [29] Clutches can contain from one to three eggs, with two being the average. The Steller’s sea-eagle was named for a noted 18th-century zoologist and explorer, Georg Wilhelm Steller. They prefer rocky coastal habitats and are also found inland along large rivers with craggy edges and mature trees.
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