Thursday, December 20, 2012

Steller's sea eagle


Animal You | Steller's sea eagle | Steller Sea-eagle is the largest bird in the genus Haliaeetus and is one of the largest birds of prey in general. Steller sea eagle length can vary from 85 to 105 cm (33 to 41) are. The Steller's sea eagle is the second highest average wingspan of an eagle. Rather small weight and total length As in most eagle Haliaeetus, the tarsus and the tail of this species is relatively short compared to other large eagles from 9.5 to 10 cm (3.7 to 3.9 inches) and from 32 to 34.5 cm (13 to 13.6 cm) in length. The bill is very large. In fact, the skull (approximately 14.6 cm (5.7 in)) and summit (about 7 cm (2.8 in)) of Steller's sea eagle is the largest of all eagles and are comparable in size accipitrids plus the Old World vultures. The Steller's sea eagle is dark brown to black. Most of your body, with white on the shoulders, thighs, and the crown is wedge-shaped, white tails.  L 'bill eyes and feet of adults are yellow.

Steller Sea Eagles are not widely known for his voice, but has been known to take a deep barking cry, ra-ra-ra-Raurau in aggressive interactions. The plumage is new chicks first is white silk, but quickly turn gray-brown smoke. As the flight feathers of eagles and other pens retrices the first year more than adults. Juvenile plumage is dark brown uniform with white feathers bases and bright spots in retrices. The young Steller sea eagle has a dark brown iris, black-brown legs and beak White. Based on the data before and feathers prisoners fragmentary half differ from heavy sea eagles, which occurs throughout the range of reproduction of the actuator.

Steller Sea Eagle breeds in the Kamchatka Peninsula, around the coast of the Sea of Okhotsk, the lower reaches of the Amur River, and north of Sakhalin and the islands Shantar, Russia. Most birds winter further south, in the South Kuril Islands, Russia and Hokkaido, Japan. That said, the Steller's sea eagles eagle is less homeless. Vagrant eagles are found in North America and Taiwan, but it will be as individuals eagles have moved away from the kind of "typical range. This bird nests in two habitats: along the coast and along the rivers with trees. They nest in large rocks or on the tops of tall trees. Some eagles, including nesting on the coast can not be migrated.

In Kamchatka eagles winter in the forests and river valleys near the coast, but unevenly distributed throughout the peninsula. Most wintering birds like living adults. Steller's sea eagle, flying down to make migration to winter in the rivers and wetlands in Japan moves, but sometimes unlike the mountainous coast. Each winter ice in the Sea of Okhotsk is bringing thousands of southern eagles. Hokkaido ice reaches the end of January. Maximum numbers in the Nemuro Strait in late February. Hokkaido Adler attention in coastal areas and lakes near the coast, with a significant number of white-tailed eagles. Eagles between late March and late April, leaving adults usually puppies first. Immigrants tend to follow coastlines and flies usually observed individuallyIn Kamchatka, most migrants are birds plumage transition period. Alternative nests are typically 900 m (3,000 ft) built by another.

Eggs and chicks arboreal mammals can be very narrow, as the black and ermine, and birds are often hunted crows. Each of these little smart nest predators rely on stealth and distraction of eagle nests precede and be killed, which is obtained when one parent. As soon as it reaches adult size during infancy, few predators threaten this species. In one case, a brown bear (Ursus arctos) is able to access a nest directly on a rock and ate an eagle fly, but is believed to be extraordinary. Nests in mature trees are probably predation Fledgings invulnerable because no large mammalian predators that can climb trees in the range of kind, yes. It has been observed that the recent floods that have an effect of global climate change, the almost total lack of nest eagle's nest on the Russian rivers caused by completely blocked the ability of parents to the importance of fish to their chicks detect survival. In Kamchatka, 320 pairs were recorded. A further 89 breeding sites are not monitored. Other 600 pairs are produced in the low Amur. The total population is about 3,200 breeding pairs.
Find Animal You