Diet Overlap

Buteo swainsoni (Swainson's Hawk)
Bubo scandiacus (Snowy Owl)

Common Diet

Urocitellus richardsonii (Richardson's ground squirrel)

Common Habitat

Alaska-St. Elias Range tundra
Alberta Mountain forests
Alberta-British Columbia foothills forests
Arctic National Wildlife Refuge
Audubon National Wildlife Refuge
Badlands National Park
British Columbia mainland coastal forests
Canadian Aspen forests and parklands
Cape Hatteras National Seashore
Cape Romain National Wildlife Refuge
Carolinian-South Atlantic Biosphere Reserve
Cascade Mountains leeward forests
Central Pacific coastal forests
Central Plains Biosphere Reserve
Crater Lake National Park
Deer Flat National Wildlife Refuge
Denali Biosphere Reserve
Dinosaur National Monument
Effigy Mounds National Monument
Elk Island National Park
Fraser Plateau and Basin complex
Grasslands National Park
Knife River Indian Villages National Hist. Site
Montana Valley and Foothill grasslands
Niagara Escarpment Biosphere Reserve
North Central Rockies forests
Northern mixed grasslands
Northern Pacific coastal forests
Northern short grasslands
Northern transitional alpine forests
Okanagan dry forests
Olympic Biosphere Reserve
Pacific Coastal Mountain icefields and tundra
Palouse grasslands
Pipestone National Monument
Point Reyes National Seashore
Prince Albert National Park
Puget lowland forests
Redberry Lake Biosphere Reserve
Saint Croix International Historic Site
Salt Plains National Wildlife Refuge
Shortgrass Steppe LTER Site
Upper Midwest forest-savanna transition
Upper Miss. River Nat'l Wildlife Refuge
Western Great Lakes forests
Wrangell-St. Elias National Park and Preserve

Attributes / relations provided by
♦ 1Spermophilus richardsonii, Gail R. Michener and James W. Koeppl, Mammalian Species No. 243, pp. 1-8, (1985)