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Overview
Bald eagle

Bald eagle

Wikipedia

The bald eagle is a bird of prey found in North America. A sea eagle, it has two known subspecies and forms a species pair with the white-tailed eagle, which occupies the same niche as the bald eagle in the Palearctic. 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.

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Distribution

Region

North America

Typical Environment

Bald eagles occur from Alaska and Canada through most of the contiguous United States and into northern Mexico. They are most common near coasts, large lakes, reservoirs, and major rivers with ample fish and suitable tall trees or cliffs for nesting. Winter concentrations form where water remains unfrozen and food is abundant. They use both pristine and human-altered landscapes if foraging and nesting needs are met. In migration and winter they gather at salmon runs, waterfowl staging areas, and open-water leads.

Altitude Range

Sea level to 3000 m

Climate Zone

Temperate

Characteristics

Size70–102 cm
Wing Span180–230 cm
Male Weight3.5 kg
Female Weight5 kg
Life Expectancy20 years

Ease of Keeping

Beginner friendly: 1/5

Useful to know

Despite the name, it isn’t bald—the term refers to the white, “piebald” head. It is the national bird and symbol of the United States and rebounded dramatically after DDT bans and conservation actions. Juveniles are mottled brown and take about 4–5 years to acquire the distinctive white head and tail.

Gallery

Bird photo
Bird photo
Bird photo
Closeup of the eponymous white head

Closeup of the eponymous white head

Bald eagle plumage

Bald eagle plumage

Bald eagle anatomy

Bald eagle anatomy

An individual bald eagle at various stages of plumage between nestling and adult. Images show the same bird as a nestling, at 1 year, 2 years, 3 years, 4 years, and 5 years old. Note the lightening of the eye, the yellowing of the beak, and the whitening of the eponymous head.

An individual bald eagle at various stages of plumage between nestling and adult. Images show the same bird as a nestling, at 1 year, 2 years, 3 years, 4 years, and 5 years old. Note the lightening of the eye, the yellowing of the beak, and the whitening of the eponymous head.

A bald eagle showing its wingspan

A bald eagle showing its wingspan

Closeup of a museum specimen's foot, showing the toepads' spiny papillae

Closeup of a museum specimen's foot, showing the toepads' spiny papillae

Bald eagle in flight near Hawkesville, Canada

Bald eagle in flight near Hawkesville, Canada

In flight during a licensed performance in Ontario, Canada

In flight during a licensed performance in Ontario, Canada

During training at the Canadian Raptor Conservancy

During training at the Canadian Raptor Conservancy

With freshly caught fish in Kodiak

With freshly caught fish in Kodiak

Juvenile with salmon, Katmai National Park

Juvenile with salmon, Katmai National Park

In flight with freshly caught fish

In flight with freshly caught fish

Feeding on catfish and other various fishes.[73] Painted by John James Audubon.

Feeding on catfish and other various fishes.[73] Painted by John James Audubon.

Bald eagle attacking an American coot

Bald eagle attacking an American coot

A bald eagle prepares to pick off a common murre from Colony Rock in Oregon Islands National Wildlife Refuge, Oregon, United States.

A bald eagle prepares to pick off a common murre from Colony Rock in Oregon Islands National Wildlife Refuge, Oregon, United States.

Carrying a caught cottontail rabbit in Seedskadee National Wildlife Refuge

Carrying a caught cottontail rabbit in Seedskadee National Wildlife Refuge

A bald eagle on a whale carcass

A bald eagle on a whale carcass

Pursuing an osprey to steal fish

Pursuing an osprey to steal fish

Bald eagles with talons locked together in a mating dance spiral free-fall dive

Bald eagles with talons locked together in a mating dance spiral free-fall dive

Mating

Mating

Bald eagle egg, Collection at Museum Wiesbaden in Germany

Bald eagle egg, Collection at Museum Wiesbaden in Germany

Adult and chick

Adult and chick

Chick at Everglades National Park

Chick at Everglades National Park

Newly fledged juvenile

Newly fledged juvenile

Inside a waste collection and transfer facility, in Homer, Alaska, United States

Inside a waste collection and transfer facility, in Homer, Alaska, United States

First-year juvenile bald eagle at Anacortes, Washington, United States

First-year juvenile bald eagle at Anacortes, Washington, United States

Lady Baltimore, a bald eagle in Alaska who survived a poaching attempt, in her Juneau Raptor Center mews, on August 15, 2015

Lady Baltimore, a bald eagle in Alaska who survived a poaching attempt, in her Juneau Raptor Center mews, on August 15, 2015

National Eagle Repository processing a bald eagle carcass for Native American use

National Eagle Repository processing a bald eagle carcass for Native American use

Seal of the president of the United States

Seal of the president of the United States

Behaviour

Temperament

solitary and territorial

Flight Pattern

soaring glider with powerful, deliberate wingbeats

Social Behavior

Pairs are typically monogamous and may mate for life, reusing and enlarging huge stick nests year after year. Nests are placed in tall trees or on cliffs with a commanding view of water. Clutches usually contain 1–3 eggs, and both parents share incubation and chick-rearing.

Migratory Pattern

Partial migrant

Song Description

The voice is a series of thin, high-pitched chirps and whistles rather than a loud scream. Calls often include repeated, piping notes used in pair communication and territorial contexts.

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