Diet Overlap

Buteo regalis (Ferruginous Hawk)
Bubo scandiacus (Snowy Owl)

Common Diet

Urocitellus richardsonii (Richardson's ground squirrel)

Common Habitat

Audubon National Wildlife Refuge
Badlands National Park
Banff National Park
Bighorn Canyon National Recreation Area
British Columbia mainland coastal forests
California Coast Ranges Biosphere Reserve
Canadian Aspen forests and parklands
Central Plains Biosphere Reserve
Crater Lake National Park
Deer Flat National Wildlife Refuge
Dinosaur National Monument
Elk Island National Park
Grasslands National Park
Montana Valley and Foothill grasslands
Niagara Escarpment Biosphere Reserve
Northern mixed grasslands
Northern short grasslands
Okanagan dry forests
Palouse grasslands
Point Reyes National Seashore
Puget lowland forests
Redwood National Park
Salt Plains National Wildlife Refuge
Shortgrass Steppe LTER Site

Attributes / relations provided by
♦ 1FOOD HABITS AND NEST CHARACTERISTICS OF BREEDING RAPTORS IN SOUTHWESTERN WYOMING, Patricia A. MacLaren, Stanley H. Anderson, and Douglas E. Runde, Great Basin Naturalist Vol. 48, No. 4 pp. 548-553 (1988)
♦ 2Spermophilus richardsonii, Gail R. Michener and James W. Koeppl, Mammalian Species No. 243, pp. 1-8, (1985)