Diet Overlap

Aegolius acadicus (Northern Saw-whet Owl)
Thamnophis sirtalis (Common Garter Snake)

Common Diet

Microtus ochrogaster (prairie vole)
Microtus pennsylvanicus (meadow vole)
Peromyscus leucopus (white-footed mouse)

Common Habitat

Acadia National Park
Alberta Mountain forests
Alberta-British Columbia foothills forests
Allegheny Highlands forests
Appalachian mixed mesophytic forests
Appalachian-Blue Ridge forests
Atlantic coastal pine barrens
Bandelier National Monument
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
California Central Valley grasslands
California Coast Ranges Biosphere Reserve
California coastal sage and chaparral
California Floristic Province
California interior chaparral and woodlands
California montane chaparral and woodlands
Canadian Aspen forests and parklands
Cape Breton Highlands National Park
Cape Cod National Seashore
Cape Romain National Wildlife Refuge
Carolinian-South Atlantic Biosphere Reserve
Cascade Mountains leeward forests
Central and Southern Cascades forests
Central and Southern mixed grasslands
Central British Columbia Mountain forests
Central Canadian Shield forests
Central forest-grasslands transition
Central Pacific coastal forests
Central Plains Biosphere Reserve
Central tall grasslands
Central U.S. hardwood forests
Champlain-Adirondack Biosphere Reserve
Chattahoochee River National Recreation Area
Chihuahuan desert
Colorado Plateau shrublands
Deer Flat National Wildlife Refuge
East Central Texas forests
Eastern Canadian Shield taiga
Eastern Cascades forests
Eastern forest-boreal transition
Eastern Great Lakes lowland forests
Edwin S. George Reserve
Fathom Five National Marine Park
Flint Hills tall grasslands
Forillon National Park
Fraser Plateau and Basin complex
Fundy National Park
George Washington Memorial Parkway
Georgian Bay Islands National Park
Gettysburg National Military Park
Glacier National Park
Great Smoky Mountains National Park
Gulf of St. Lawrence lowland forests
H.J. Andrews Biosphere Reserve
Heath and Marjorie Angelo Coast Range Preserve
Hubbard Brook Biosphere Reserve
Kejimkujik National Park
Klamath-Siskiyou forests
Kootenay National Park
Kouchibouguac National Park
La Mauricie National Park
Lake Superior Provincial Park
Lassen Volcanic National Park
Lava Beds National Monument
Long Point Biosphere Reserve
McCloud River Preserve
Middle Atlantic coastal forests
Midwestern Canadian Shield forests
Mississippi lowland forests
Montana Valley and Foothill grasslands
Mount Mitchell State Park
Mount Rainier National Park
Mount Revelstoke National Park
Nebraska Sand Hills mixed grasslands
New England-Acadian forests
New Jersey Pinelands Biosphere Reserve
Niagara Escarpment Biosphere Reserve
North Central Rockies forests
Northeastern coastal forests
Northern California coastal forests
Northern mixed grasslands
Northern short grasslands
Northern tall grasslands
Northern transitional alpine forests
Oak Ridge National Environmental Research Park
Okanagan dry forests
Olympic Biosphere Reserve
Ozark Mountain forests
Pacific Coastal Mountain icefields and tundra
Pacific Rim National Park Reserve
Palouse grasslands
Pinnacles National Monument
Point Pelee National Park
Point Reyes National Seashore
Prince Albert National Park
Prince Edward Island National Park
Puget lowland forests
Pukaskwa National Park
Redwood National Park
Riding Mountain Biosphere Reserve
Rondeau Provincial Park
Saint Croix International Historic Site
Saint Lawrence Islands National Park
Sequoia and Kings Canyon Biosphere Reserve
Sevilleta LTER Site
Shortgrass Steppe LTER Site
Sierra Nevada forests
Snake-Columbia shrub steppe
South Atlantic Coastal Plain Biosphere Reserve
South Central Rockies forests
Southeastern mixed forests
Southern Appalachian Biosphere Reserve
Southern Great Lakes forests
Southern Hudson Bay taiga
Southwest Nova Biosphere Reserve
Texas blackland prairies
Upper Midwest forest-savanna transition
Upper Miss. River Nat'l Wildlife Refuge
Wasatch and Uinta montane forests
Waterton Biosphere Reserve
Western Great Lakes forests
Western short grasslands
Whiskey-Shasta-Trinity National Recreation Area
Willamette Valley forests
Yellowstone Biosphere Reserve
Yosemite National Park

Attributes / relations provided by
♦ 1DIET OF NORTHERN SAW-WHET OWLS IN SOUTHERN WISCONSIN, SCOTT R. SWENGEL AND ANN B. SWENGEL, The Condor 94:707-711 (1992)
♦ 2Resources of a Snake Community in Prairie-Woodland Habitat of Northeastern Kansas, Henry S. Fitch, U.S Fish and Wildlife Service, Wildlife Research Report 13: 83-98 (1982)
♦ 3Study of Northern Virginia Ecology