Diet Overlap

Buteo lagopus (Rough-legged Hawk)
Bubo virginianus (Great Horned Owl)

Common Diet

Microtus montanus (montane vole)
Mustela frenata (Long-tailed Weasel)
Sciurus niger (eastern fox squirrel)

Common Habitat

Acadia National Park
Agate Fossil Beds National Monument
Alaska Peninsula montane taiga
Alaska-St. Elias Range tundra
Alberta Mountain forests
Alberta-British Columbia foothills forests
Aleutian Islands tundra
Algonquin Provincial Park
Allegheny Highlands forests
Amistad National Recreation Area
Antietam National Battlefield
Anza-Borrego Desert State Park, CA
Apostle Islands National Lakeshore
Appalachian mixed mesophytic forests
Appalachian-Blue Ridge forests
Arctic National Wildlife Refuge
Arizona Mountains forests
Arkansas Post National Memorial
Assateague Island National Seashore
Atlantic coastal pine barrens
Audubon National Wildlife Refuge
Badlands National Park
Bandelier National Monument
Banff National Park
Beringia lowland tundra
Beringia upland tundra
Big Bend Biosphere Reserve
Bighorn Canyon National Recreation Area
Blackwater National Wildlife Refuge
Blue Mountains forests
Bombay Hook National Wildlife Refuge
British Columbia mainland coastal forests
Bruce Peninsula National Park
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 Breton Highlands National Park
Cape Cod National Seashore
Cape Hatteras National Seashore
Capital Reef National Park
Capulin Volcano National Monument
Carlsbad Caverns National Park
Carolinian-South Atlantic Biosphere Reserve
Carrizo Plain Preserve
Casa Grande National Monument
Cascade Mountains leeward forests
Cedar Creek LTER Site
Central and Southern Cascades forests
Central and Southern mixed grasslands
Central British Columbia Mountain forests
Central Canadian Shield forests
Central forest-grasslands transition
Central Gulf Coastal Plain Biosphere Reserve
Central Pacific coastal forests
Central Plains Biosphere Reserve
Central tall grasslands
Central U.S. hardwood forests
Champlain-Adirondack Biosphere Reserve
Channel Islands National Marine Sanctuary
Channel Islands National Park
Chattahoochee River National Recreation Area
Chesapeake & Ohio Canal National Hist. Park
Chickasaw National Recreation Area
Chihuahuan desert
Chippewa Nature Center
Colonial National Historic Park
Colorado Plateau shrublands
Colorado Rockies forests
Coronado National Monument
Cosumnes River Preserve
Crater Lake National Park
Craters of the Moon National Monument
Creighton Ranch Preserve
Crosswinds Marsh
Cumberland Island National Seashore
Curecanti National Recreation Area
De Soto National Wildlife Refuge
Death Valley National Park
Deer Flat National Wildlife Refuge
Denali Biosphere Reserve
Devils Tower National Monument
Dinosaur National Monument
East Central Texas forests
Eastern Canadian forests
Eastern Canadian Shield taiga
Eastern Cascades forests
Eastern forest-boreal transition
Eastern Great Lakes lowland forests
Edwards Plateau savanna
Effigy Mounds National Monument
El Morro National Monument
Elk Island National Park
Elkhorn Slough Preserve
Everglades
Fathom Five National Marine Park
Flint Hills tall grasslands
Forillon National Park
Fort Davis National Historic Site
Fort Larned National Historic Site
Fort Necessity National Battlefield
Fort Pulaski National Monument
Fraser Plateau and Basin complex
Fundy National Park
Gates of the Arctic National Park
Gateway National Recreation Area
George WA Carver National Monument
George Washington Memorial Parkway
Georgian Bay Islands National Park
Glacier Bay National Park and Preserve
Glen Canyon National Recreation Area
Golden Gate National Recreation Area
Grand Canyon National Park
Gray Lodge State Wildlife Area
Great Basin montane forests
Great Basin National Park
Great Basin shrub steppe
Great Swamp National Wildlife Refuge
Greenwater Provincial Park
Gros Morne National Park
Guadalupe Mountains National Park
Gulf of St. Lawrence lowland forests
Harpers Ferry National Historical Park
Homestead National Monument of America
Horicon National Wildlife Refuge
Hovenweep National Monument
Indiana Dunes National Lakeshore
Interior Alaska-Yukon lowland taiga
Isle Royale Biosphere Reserve
Jasper National Park
Jepson Prairie Preserve
Joshua Tree National Park
Kellogg Biological Station LTER Site
Kern River Preserve
Klamath-Siskiyou forests
Kluane National Park and Reserve
Konza Prairie Biosphere Reserve
Kootenay National Park
Kouchibouguac National Park
La Mauricie National Park
Lake Mead National Recreation Area
Lake Meredith National Recreation Area
Lake Superior Provincial Park
Land Between the Lakes Biosphere Reserve
Lassen Volcanic National Park
Lava Beds National Monument
Little St. Simons Island
Long Point Biosphere Reserve
Madrean Pine-Oak Woodlands
Mammoth Cave Area Biosphere Reserve (Natn'l Park)
Manassas National Battlefield Park
Mesa Verde National Park
Mid-Continental Canadian forests
Middle Atlantic coastal forests
Midwestern Canadian Shield forests
Mingan Archipelago National Park Reserve
Mississippi lowland forests
Mojave and Colorado Deserts Biosphere Reserve
Mojave desert
Montana Valley and Foothill grasslands
Mount Rainier National Park
Mount Revelstoke National Park
Mount Tamalpais State Park
Nahanni National Park Reserve
Nebraska Sand Hills mixed grasslands
New England-Acadian forests
New River Gorge National River
Newfoundland Highland forests
Nez Perce National Historical Park
Niagara Escarpment Biosphere Reserve
Noatak Biosphere Reserve
North America
North Central Rockies forests
Northeastern coastal forests
Northern California coastal forests
Northern mixed grasslands
Northern Pacific coastal forests
Northern short grasslands
Northern tall grasslands
Okanagan dry forests
Ozark Mountain forests
Ozark National Scenic Riverways
Pacific Rim National Park Reserve
Padre Island National Seashore
Paine Preserve
Palouse grasslands
Petrified Forest National Park
Pictured Rocks National Lakeshore
Piney Woods forests
Point Pelee National Park
Point Reyes National Seashore
Polar Bear Provincial Park
Prince Albert National Park
Prince Edward Island National Park
Prince William Forest Park
Puget lowland forests
Pukaskwa National Park
Queen Charlotte Islands
Redberry Lake Biosphere Reserve
Redwood National Park
Riding Mountain Biosphere Reserve
Rocky Mountain Biosphere Reserve
Rondeau Provincial Park
Saint Croix International Historic Site
Saint Lawrence Islands National Park
Salt Plains National Wildlife Refuge
San Joaquin Biosphere Reserve
Santa Cruz Island Preserve
Santa Monica Mountains National Recreation Area
Saratoga National Historical Park
Sequoia and Kings Canyon Biosphere Reserve
Sevilleta LTER Site
Shortgrass Steppe LTER Site
Sierra Madre de Oaxaca pine-oak forests
Sierra Nevada forests
Sleeping Bear Dunes National Lakeshore
Snake-Columbia shrub steppe
South Atlantic Coastal Plain Biosphere Reserve
South Avalon-Burin oceanic barrens
South Central Rockies forests
Southeastern mixed forests
Southern Great Lakes forests
Sunset Crater Volcano National Monument
Tamaulipan mezquital
Tawas Point State Park
Texas blackland prairies
Upper Midwest forest-savanna transition
Upper Miss. River Nat'l Wildlife Refuge
Virginia Coast Biosphere Reserve
Voyageurs National Park
Wapusk National Park
Wasatch and Uinta montane forests
Waterton Biosphere Reserve
Western Great Lakes forests
Western Michigan University’s Asylum Lake
Western short grasslands
White Sands National Monument
Willamette Valley forests
Wood Buffalo National Park
Wrangell-St. Elias National Park and Preserve
Wupatki National Monument
Wyoming Basin shrub steppe
Yellowstone Biosphere Reserve
Yoho National Park
Zion National Park

Attributes / relations provided by
1Microtus montanus, Wendy E. Sera and Cathleen N. Early, MAMMALIAN SPECIES No. 716, pp. 1–10 (2003)
2Mustela frenata, Steven R. Sheffield and Howard H. Thomas, MAMMALIAN SPECIES No. 570, pp. 1-9 (1997)
3Sciurus niger, John L. Koprowski, MAMMALIAN SPECIES No. 479, pp. 1-9 (1994)