- 18.5–20.5 in
- 52–54.3 in
- 25.2–49.4 oz
- Buse pattue (French)
- Ratonero calzado (Spanish)
- The nest of the Rough-legged Hawk sometimes contains the bones of caribou along with sticks.
- The name "Rough-legged" Hawk refers to the feathered legs. The Rough-legged Hawk, the Ferruginous Hawk, and the Golden Eagle are the only American hawks to have legs feathered all the way to the toes.
Open coniferous forest, tundra and generally barren country, breeding on cliffs or in trees, wintering also in grasslands and open cultivated areas.
Small mammals and some birds.
- Clutch Size
- 1–7 eggs
- Egg Description
- Dingy white blotched with brown.
- Condition at Hatching
- Helpless and covered with thick down.
Large bowl of sticks on cliff ledge. Lined with grasses, sedges, small twigs, and greenery.
Hunts from the air or an elevated perch. Frequently hovers.
No evidence of any change in North American breeding populations.
- Bechard, M. J., and T. R. Swem. 2002. Rough-legged Hawk (Buteo lagopus). In The Birds of North America, No. 641 (A. Poole and F. Gill, eds.). The Birds of North America, Inc., Philadelphia, PA.