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The adult is mainly brown with a white head and tail. The bald eagle is both the national bird and national animal of the United States of America. In the late 20th century it was on the brink of extirpation in the contiguous United States.
The plumage of an adult bald eagle is evenly dark brown with a white head and tail.The call consists of weak staccato, chirping whistles, kleek kik ik ik ik, somewhat similar in cadence to a gull's call.The calls of young birds tend to be more harsh and shrill than those of adults.The bald eagle placed in the genus Haliaeetus (sea eagles) which gets both its common and specific scientific names from the distinctive appearance of the adult's head.Bald in the English name is derived from the word piebald, and refers to the white head and tail feathers and their contrast with the darker body.The bald eagle's natural range covers most of North America, including most of Canada, all of the continental United States, and northern Mexico. Occupying varied habitats from the bayous of Louisiana to the Sonoran Desert and the eastern deciduous forests of Quebec and New England, northern birds are migratory, while southern birds are resident, remaining on their breeding territory all year.
At minimum population, in the 1950s, it was largely restricted to Alaska, the Aleutian Islands, northern and eastern Canada, and Florida.
Another distinguishing feature of the immature bald eagle over the mature bird is its black, yellow-tipped beak; the mature eagle has a fully yellow beak.
The bald eagle has sometimes been considered the largest true raptor (accipitrid) in North America.
Its range includes most of Canada and Alaska, all of the contiguous United States, and northern Mexico.
It is found near large bodies of open water with an abundant food supply and old-growth trees for nesting.
The bald eagle (Haliaeetus leucocephalus, from Greek hali "sea", aiētos "eagle", leuco "white", cephalos "head") is a bird of prey found in North America.