Diet Overlap

Buteo swainsoni (Swainson's Hawk)
Circus cyaneus (Northern Harrier)

Common Diet

Urocitellus richardsonii (Richardson's ground squirrel)

Common Habitat

Agate Fossil Beds National Monument
Alaska-St. Elias Range tundra
Alberta Mountain forests
Alberta-British Columbia foothills forests
Amistad National Recreation Area
Anza-Borrego Desert State Park, CA
Arches National Park
Arctic National Wildlife Refuge
Arizona Mountains forests
Arkansas Post National Memorial
Audubon National Wildlife Refuge
Badlands National Park
Bandelier National Monument
Barro Colorado Island
Big Bend Biosphere Reserve
Big Cypress National Preserve
Big Morongo Canyon Preserve
Blue Mountains forests
British Columbia mainland coastal forests
Bryce Canyon National Park
Cabrillo National Monument
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
Canaveral National Seashore
Canyonlands National Park
Cape Hatteras National Seashore
Cape Romain National Wildlife Refuge
Capital Reef National Park
Caribbean Islands
Carlsbad Caverns National Park
Carolinian-South Atlantic Biosphere Reserve
Carrizo Plain Preserve
Casa Grande National Monument
Cascade Mountains leeward 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
Chaco Culture National Historical Park
Channel Islands National Marine Sanctuary
Channel Islands National Park
Chickasaw National Recreation Area
Chihuahuan desert
Chiricahua National Monument
Chocó-Darién moist forests
Coachella Valley Preserve
Colorado Plateau shrublands
Colorado Rockies forests
Cordillera Volcanica Central
Coronado National Monument
Costa Rican seasonal moist forests
Cosumnes River Preserve
Crater Lake National Park
Craters of the Moon National Monument
Creighton Ranch Preserve
Curecanti National Recreation Area
Death Valley National Park
Deer Flat National Wildlife Refuge
Denali Biosphere Reserve
Dinosaur National Monument
Dos Palmas Preserve
East Central Texas forests
Eastern Cascades forests
Edwards Plateau savanna
Effigy Mounds National Monument
El Malpais National Monument
El Morro National Monument
Elk Island National Park
Elkhorn Slough Preserve
Flint Hills tall grasslands
Florida Keys National Marine Sanctuary
Fort Bowie National Historic Site
Fort Davis National Historic Site
Fort Larned National Historic Site
Fossil Butte National Monument
Fraser Plateau and Basin complex
George WA Carver National Monument
Glacier Bay National Park and Preserve
Glen Canyon National Recreation Area
Golden Gate National Recreation Area
Grand Canyon National Park
Grand Teton National Park
Grasslands National Park
Gray Lodge State Wildlife Area
Great Basin montane forests
Great Basin National Park
Great Basin shrub steppe
Guadalupe Mountains National Park
Homestead National Monument of America
Hovenweep National Monument
Isthmian-Atlantic moist forests
Isthmian-Pacific moist forests
Jepson Prairie Preserve
Jornada Biosphere Reserve
Joshua Tree National Park
Klamath-Siskiyou forests
Knife River Indian Villages National Hist. Site
Konza Prairie Biosphere Reserve
Kootenay National Park
La Selva Biological Station
Lake Mead National Recreation Area
Lake Meredith National Recreation Area
Lake Roosevelt National Recreation Area
Lava Beds National Monument
Lesser Antillean dry forests
Long Point Biosphere Reserve
Magdalena-Urabá moist forests
Maracaibo dry forests
Mesa Verde National Park
Mesoamerica
Mid-Continental Canadian forests
Mojave and Colorado Deserts Biosphere Reserve
Mojave desert
Montana Valley and Foothill grasslands
Mount Rainier National Park
Mount Tamalpais State Park
Nahanni National Park Reserve
Nebraska Sand Hills mixed grasslands
Niagara Escarpment Biosphere Reserve
North America
North Central Rockies forests
Northern California coastal forests
Northern Cordillera forests
Northern mixed grasslands
Northern Pacific coastal forests
Northern short grasslands
Northern tall grasslands
Northern transitional alpine forests
Okanagan dry forests
Olympic Biosphere Reserve
Organ Pipe Cactus Biosphere Reserve
Ozark Mountain forests
Pacific Coastal Mountain icefields and tundra
Padre Island National Seashore
Paine Preserve
Palo Verde National Park
Palouse grasslands
Petrified Forest National Park
Philip L. Boyd Deep Canyon Desert Research Center
Piney Woods forests
Pinnacles National Monument
Pipe Spring National Monument
Pipestone National Monument
Point Reyes National Seashore
Prince Albert National Park
Puget lowland forests
Redberry Lake Biosphere Reserve
Reserva de la Biosfera El Vizcaino
Reserva de la Biosfera Sierra Gorda
Reserva de Mapimi
Rocky Mountain Biosphere Reserve
Saguaro National Park
Saint Croix International Historic Site
Salinas Pueblo Missions National Monument
Salt Plains National Wildlife Refuge
San Joaquin Biosphere Reserve
Santa Cruz Island Preserve
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 forests
Snake-Columbia shrub steppe
Sonoran desert
Sonoran-Sinaloan transition subtropical dry forest
South Central Rockies forests
Sunset Crater Volcano National Monument
Tamaulipan mezquital
Texas blackland prairies
Tomales Bay State Park
Tonto National Monument
Tumbes-Choco-Magdalena
Upper Midwest forest-savanna transition
Upper Miss. River Nat'l Wildlife Refuge
Virginia Coast Biosphere Reserve
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
Wilson's Creek National Battlefield
Wind Cave National Park
Wrangell-St. Elias National Park and Preserve
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)