Diet Overlap

Buteo swainsoni (Swainson's Hawk)
Mustela frenata (Long-tailed Weasel)

Common Diet

Urocitellus richardsonii (Richardson's ground squirrel)
Urocitellus townsendii (Townsend's ground squirrel)

Common Habitat

Agate Fossil Beds National Monument
Alberta Mountain forests
Alberta-British Columbia foothills forests
Anza-Borrego Desert State Park, CA
Apure-Villavicencio dry forests
Arizona Mountains forests
Audubon National Wildlife Refuge
Badlands National Park
Bandelier National Monument
Big Bend Biosphere Reserve
Big Cypress National Preserve
Blue Mountains forests
Bolivian Yungas
British Columbia mainland coastal forests
Bryce Canyon National Park
California Central Valley grasslands
California coastal sage and chaparral
California Floristic Province
California interior chaparral and woodlands
California montane chaparral and woodlands
Canadian Aspen forests and parklands
Canyonlands National Park
Cape Romain National Wildlife Refuge
Capital Reef National Park
Caqueta moist forests
Carlsbad Caverns National Park
Carolinian-South Atlantic Biosphere Reserve
Carrizo Plain Preserve
Cascade Mountains leeward forests
Catatumbo moist forests
Cauca Valley dry forests
Cauca Valley montane forests
Cedar Breaks National Monument
Central American Atlantic moist forests
Central and Southern Cascades forests
Central and Southern mixed grasslands
Central forest-grasslands transition
Central Pacific coastal forests
Central Plains Biosphere Reserve
Central tall grasslands
Central U.S. hardwood forests
Chickasaw National Recreation Area
Chihuahuan desert
Chiricahua National Monument
Chocó-Darién moist forests
Colorado Plateau shrublands
Colorado Rockies forests
Cordillera La Costa montane forests
Cordillera Oriental montane forests
Cordillera Volcanica Central
Costa Rican seasonal moist forests
Craters of the Moon National Monument
Deer Flat National Wildlife Refuge
Dinosaur National Monument
East Central Texas forests
Eastern Cascades forests
Eastern Cordillera real montane forests
Eastern Panamanian montane forests
Edwards Plateau savanna
El Morro National Monument
Elk Island National Park
Elkhorn Slough Preserve
Flint Hills tall grasslands
Fraser Plateau and Basin complex
Grand Canyon National Park
Grand Teton National Park
Grasslands National Park
Great Basin montane forests
Great Basin National Park
Great Basin shrub steppe
Guadalupe Mountains National Park
Guajira-Barranquilla xeric scrub
Iquitos varzea
Isthmian-Atlantic moist forests
Isthmian-Pacific moist forests
Japurá-Solimoes-Negro moist forests
Klamath-Siskiyou forests
Knife River Indian Villages National Hist. Site
La Amistad International Park
La Costa xeric shrublands
La Selva Biological Station
Lake Meredith National Recreation Area
Lake Roosevelt National Recreation Area
Lara-Falcón dry forests
Lava Beds National Monument
Long Point Biosphere Reserve
Magdalena Valley dry forests
Magdalena Valley montane forests
Magdalena-Urabá moist forests
Maracaibo dry forests
Marañón dry forests
Mesoamerica
Mojave and Colorado Deserts Biosphere Reserve
Mojave desert
Montana Valley and Foothill grasslands
Mount Rainier National Park
Mount Tamalpais State Park
Napo moist forests
Nebraska Sand Hills mixed grasslands
Negro-Branco moist forests
Niagara Escarpment Biosphere Reserve
North America
North Central Rockies forests
Northern California coastal forests
Northern mixed grasslands
Northern short grasslands
Northern tall grasslands
Northwestern Andean montane forests
Okanagan dry forests
Olympic Biosphere Reserve
Ozark Mountain forests
Paine Preserve
Palo Verde National Park
Palouse grasslands
Panamanian dry forests
Pantepuis
Paraguana xeric scrub
Patía Valley dry forests
Peruvian Yungas
Philip L. Boyd Deep Canyon Desert Research Center
Piney Woods forests
Pinnacles National Monument
Point Reyes National Seashore
Prince Albert National Park
Puget lowland forests
Purus varzea
Reserva de la Biosfera Sierra Gorda
Reserva de Mapimi
Rio Negro campinarana
Rocky Mountain Biosphere Reserve
San Joaquin Biosphere Reserve
Santa Marta montane forests
Santa Monica Mountains National Recreation Area
Scotts Bluff National Monument
Sequoia and Kings Canyon Biosphere Reserve
Sevilleta LTER Site
Shortgrass Steppe LTER Site
Sierra Nevada de Santa Marta (incl. Tayrona NP)
Sierra Nevada forests
Sinú Valley dry forests
Snake-Columbia shrub steppe
Sonoran-Sinaloan transition subtropical dry forest
South Central Rockies forests
Southwest Amazon moist forests
Sunset Crater Volcano National Monument
Talamancan montane forests
Tamaulipan mezquital
Texas blackland prairies
Tropical Andes
Tumbes-Choco-Magdalena
Ucayali moist forests
Upper Midwest forest-savanna transition
Venezuelan Andes montane forests
Wasatch and Uinta montane forests
Waterton Biosphere Reserve
Western Great Lakes forests
Western Gulf Coastal grasslands
Western short grasslands
White Sands National Monument
Willamette Valley forests
Wind Cave National Park
Wupatki National Monument
Wyoming Basin shrub steppe
Yellowstone Biosphere Reserve
Zion National Park

Attributes / relations provided by
♦ 1Spermophilus richardsonii, Gail R. Michener and James W. Koeppl, Mammalian Species No. 243, pp. 1-8, (1985)
♦ 2Spermophilus townsendii, Eric A. Rickart, MAMMALIAN SPECIES No. 268, pp. 1-6 (1987)