Diet Overlap

Aquila chrysaetos (Golden Eagle)
Bubo scandiacus (Snowy Owl)

Common Diet

Urocitellus richardsonii (Richardson's ground squirrel)

Common Habitat

Acadia National Park
Alaska-St. Elias Range tundra
Alberta Mountain forests
Alberta-British Columbia foothills forests
Aleutian Islands Biosphere Reserve
Algonquin Provincial Park
Altai alpine meadow and tundra
Altai montane forest and forest steppe
Altai steppe and semi-desert
Amur meadow steppe
Arctic National Wildlife Refuge
Audubon National Wildlife Refuge
Badlands National Park
Banff National Park
Barguzinskiy Biosphere Reserve
Belovezhskaya Pushcha Biosphere Reserve
Berezinskiy Zapovednik
Bighorn Canyon National Recreation Area
Blackwater National Wildlife Refuge
British Columbia mainland coastal forests
Bruce Peninsula National Park
California Coast Ranges Biosphere Reserve
Canadian Aspen forests and parklands
Cape Breton Highlands National Park
Cape Romain National Wildlife Refuge
Carolinian-South Atlantic Biosphere Reserve
Cascade Mountains leeward forests
Caspian lowland desert
Central British Columbia Mountain forests
Central China loess plateau mixed forests
Central Pacific coastal forests
Central Plains Biosphere Reserve
Crater Lake National Park
Cumberland Island National Seashore
Da Hinggan-Dzhagdy Mountains conifer forests
Darvinsky Zapovednik
Daurskiy Biosphere Reserve
Deer Flat National Wildlife Refuge
Denali Biosphere Reserve
Dinosaur National Monument
Eastern Canadian Shield taiga
Eastern forest-boreal transition
Eastern Great Lakes lowland forests
Effigy Mounds National Monument
Elk Island National Park
Emin Valley steppe
Fathom Five National Marine Park
Forillon National Park
Fort Pulaski National Monument
Fraser Plateau and Basin complex
Fundy National Park
Gates of the Arctic National Park
Gateway National Recreation Area
Georgian Bay Islands National Park
Grasslands National Park
Gulf of St. Lawrence lowland forests
Indiana Dunes National Lakeshore
Interior Yukon-Alaska alpine tundra
Ivvavik National Park
Jasper National Park
Kluane National Park and Reserve
Knife River Indian Villages National Hist. Site
Kola Peninsula tundra
Krkonose
Kronotskiy Biosphere Reserve
Lake Superior Provincial Park
Lake Torne Area
Laplandskiy Biosphere Reserve
Manchurian mixed forests
Mongolian-Manchurian grassland
Montana Valley and Foothill grasslands
Mountains of Central Asia
Nenjiang River grassland
New England-Acadian forests
Niagara Escarpment Biosphere Reserve
Noatak Biosphere Reserve
North Central Rockies forests
Northeast China Plain deciduous forests
Northern Canadian Shield taiga
Northern mixed grasslands
Northern Pacific coastal forests
Northern short grasslands
Northern transitional alpine forests
Northwest Russian-Novaya Zemlya tundra
Ogilvie-MacKenzie alpine tundra
Okanagan dry forests
Okskiy Biosphere Reserve
Olympic Biosphere Reserve
Ozark National Scenic Riverways
Pacific Coastal Mountain icefields and tundra
Pacific Rim National Park Reserve
Palouse grasslands
Pamir alpine desert and tundra
Pechoro-Ilychskiy Biosphere Reserve
Point Pelee National Park
Point Reyes National Seashore
Prince Albert National Park
Puget lowland forests
Pukaskwa National Park
Queen Charlotte Islands
Queen Maud Gulf Bird Sanctuary
Redwood National Park
Riding Mountain Biosphere Reserve
Rondeau Provincial Park
Saint Croix International Historic Site
Salt Plains National Wildlife Refuge
Saratoga National Historical Park
Sayano-Shushenskiy Biosphere Reserve
Scandinavian and Russian taiga
Scandinavian Montane Birch forest and grasslands
Shortgrass Steppe LTER Site
Sikhote-Alinskiy Biosphere Reserve
Sokhondinskiy Biosphere Reserve
South Atlantic Coastal Plain Biosphere Reserve
Southern Great Lakes forests
Southern Hudson Bay taiga
St. Kilda National Nature Reserve
Suiphun-Khanka meadows and forest meadows
Taimyrsky Biosphere Reserve
Taklimakan desert
Tawas Point State Park
Tian Shan foothill arid steppe
Tian Shan montane conifer forests
Tian Shan montane steppe and meadows
Tsentral'no-Sibirskiy Biosphere Reserve
Tuktut Nogait National Park
Ubsunurskaya Kotlovina (Ubsunur Depression)
Ukkusiksalik National Park
Upper Midwest forest-savanna transition
Upper Miss. River Nat'l Wildlife Refuge
Voronezhskiy Biosphere Reserve
Walker Bay Field Station
Western Great Lakes forests
Wood Buffalo National Park
Wrangell-St. Elias National Park and Preserve

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)