Sunday, November 18, 2012

Bald Eagle


Animal You | Bald Eagle | The plumage of adult Bald Eagle is evenly brown with a white head and tail. The tail is moderately long, slightly wedge-shaped. The legs are feather-free, and the toes are short and powerful with large talons. Immature Bald Eagle Golden Eagle in that the former has a protruding head with great distinction beak, wings held straight flat (not slightly raised) and with rigid wings and feathers that cover the legs completely. The bald eagle is from time to time. That the largest raptor truth (accipitrid) in North America, the largest California condor is a New World vulture But the eagle in his career in the United States, largely overlapping body weight and size of the bald eagle. In addition, close relatives of the bald eagle, wings shorter but wider white-tailed eagles and Steller's sea eagle, rarely vagrate coast from Alaska to Asia

Females are about 25 percent more than men, on average, 5.8 kg (13 lb) and against men "average weight of 4.1 kg (9.0 lb). Smaller samples are Florida, where adult men as little as 2.3 kg (5.1 lb) and a wingspan of 1.68 m weighs (5.5 feet)., the largest eagle in Alaska, where large females weigh up to 7.5 kg (17 lb) and a length of 2.44 m (8.0 ft.) through the wings. The bald eagle habitats strip near coasts, rivers, large lakes, oceans and other large bodies of open water with abundant fish. Studies preference for waters with a circumference of more than 11 kilometers have shown (7 miles), and lakes with an area of over 10 square kilometers (4 square miles) are optimal for breeding bald eagles. The Bald Eagle requires mature and mature coniferous or deciduous trees for perching, roosting and nesting.

The Bald Eagle is extremely sensitive to human activity, and is more common in areas free of human disturbance. Choose sites over 1.2 km (0.75 miles) in the low-density human disturbance and more than 1.8 kilometers (1.1 miles) of medium to high density human disturbance Sometimes bald eagles s " venture into large estuaries or secluded olive groves in large cities, as Hardtack Iceland on the Willamette River in Portland, Oregon, and John Heinz National Wildlife Refuge at Tinicum Philadelphia, Pennsylvania. Despite this sensitivity, pulled a family of bald eagles in Harlem, New York in 2010.

The natural range of the bald eagle covers most of North America, including most of Canada. Throughout the continental United States and northern Mexico is the only native North American Eagle. Bald eagles also congregate in certain locations in winter. From November to February, 1-2000 birds winter in Squamish, British Columbia, about halfway between Vancouver and Whistler. The bald eagle is a powerful boat, and takes to thermal convection. The Bald Eagle selects migration routes which take advantage of thermal updrafts, and food resources.

Migration generally takes place during the day, when bald eagles are sexually mature thermal Sun produce four or five years. It is thought that Bald Eagles mate for life. Bald Eagle Court involves complex calls and flight displays. The nest is the largest of any North American bird, is repeatedly used for many years and with new material added each year may eventually become large as 4 meters (13 feet) deep, 2 5 m (8.2 feet) in diameter and weighs 1 ton (1.1 short tons) was found by a nest in Florida (20 feet) to 6.1 meters deep, 2.9 m will be (9.5 feet) in diameter and weigh 3 short tons (2.7 t). This nest is on record as the largest tree nest ever known of all animals. The nest is on branches, usually built in large trees near water. When breeding where there are no trees, the Bald Eagle nests in the ground. Eggs (2.9 inches) long, on average about 73 mm and a width of 55 mm (2.2 inches). The average lifespan of Bald Eagles in the wild is about 20 years, the oldest confirmed age 28. As with size, the average lifespan of an eagle appears people are influenced by its location. 

Find Animal You