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Overview
Ferruginous hawk

Ferruginous hawk

Wikipedia

The ferruginous hawk is a large bird of prey and belongs to the broad-winged buteo hawks. An old colloquial name is ferrugineous rough-leg, due to its similarity to the closely related rough-legged hawk.

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Distribution

Region

Western and Central North America

Typical Environment

Breeds across the Great Plains and Intermountain West from southern Canada through the western United States, with wintering populations extending into the southwestern U.S. and northern Mexico. It favors vast open habitats such as native grasslands, sagebrush steppe, desert edges, and agricultural landscapes. Nests are placed on cliffs, buttes, isolated trees, rock outcrops, or increasingly on utility structures; in treeless areas it may nest on the ground. It avoids dense forests and prefers wide horizons with scattered perches for hunting. Seasonal movements vary, with northern breeders migrating south while some interior populations remain year-round.

Altitude Range

0–2500 m

Climate Zone

Temperate

Characteristics

Size56–69 cm
Wing Span120–150 cm
Male Weight1.2 kg
Female Weight1.8 kg
Life Expectancy12 years

Ease of Keeping

Beginner friendly: 1/5

Useful to know

The ferruginous hawk is the largest North American buteo and has feathered legs, which gave rise to the old name 'ferrugineous rough-leg.' It occurs in both light and dark color morphs, with the light morph showing rich rufous tones that inspired its name. It often builds very large stick nests and will use cliffs, isolated trees, or human-made structures. As a top predator of open country, it helps control populations of prairie dogs, ground squirrels, and jackrabbits.

Gallery

Bird photo
Bird photo
Bird photo
Dark-morph bird on nest

Dark-morph bird on nest

Light-morph in captivity

Light-morph in captivity

In flight as seen from below

In flight as seen from below

Ferruginous Hawk showing wings, tail, and dark legs, near Las Vegas, New Mexico

Ferruginous Hawk showing wings, tail, and dark legs, near Las Vegas, New Mexico

Skull of a ferruginous hawk

Skull of a ferruginous hawk

Ferruginous hawk at Augustusburg Castle in Saxony

Ferruginous hawk at Augustusburg Castle in Saxony

Prairie dogs, one of the favorite foods of the ferruginous hawk

Prairie dogs, one of the favorite foods of the ferruginous hawk

Ferruginous hawk searching for prairie dogs at Badlands National Park in South Dakota

Ferruginous hawk searching for prairie dogs at Badlands National Park in South Dakota

Ferruginous hawk nesting platform

Ferruginous hawk nesting platform

Chicks on nest

Chicks on nest

Juvenile

Juvenile

Banding chicks

Banding chicks

Ferruginous hawk at Lacreek National Wildlife Refuge

Ferruginous hawk at Lacreek National Wildlife Refuge

Behaviour

Temperament

solitary and territorial

Flight Pattern

soaring glider

Social Behavior

Typically monogamous, pairs establish large territories over open country. Nests are bulky stick platforms reused and added to in subsequent years, with clutches usually 2–5 eggs. Adults vigorously defend nest sites and often select elevated vantage points for both nesting and hunting.

Migratory Pattern

Partial migrant

Song Description

Generally quiet, but gives high, harsh screaming calls, often rendered as a descending kee-yee or kreeee. Also uses sharp chatters and squeals near the nest or when alarmed.

Similar Bird Species