Diet Overlap

Bubo virginianus (Great Horned Owl)
Strix varia (Barred Owl)

Common Diet

Blarina brevicauda (Northern Short-tailed Shrew)
Elanoides forficatus (Swallow-tailed Kite)
Glaucomys sabrinus (northern flying squirrel)
Microtus pennsylvanicus (meadow vole)
Microtus pinetorum (woodland vole)
Mustela frenata (Long-tailed Weasel)
Sorex vagrans (Vagrant Shrew)
Sylvilagus palustris (Marsh Rabbit)

Common Habitat

Acadia National Park
Alberta Mountain forests
Alberta-British Columbia foothills forests
Algonquin Provincial Park
Allegheny Highlands forests
Antietam National Battlefield
Apostle Islands National Lakeshore
Appalachian mixed mesophytic forests
Appalachian-Blue Ridge forests
Arkansas Post National Memorial
Atlantic coastal pine barrens
Bajío dry forests
Banff National Park
Big Cypress National Preserve
Blackbeard Island National Wildlife Refuge
Blackwater National Wildlife Refuge
Bombay Hook National Wildlife Refuge
British Columbia mainland coastal forests
Bruce Peninsula National Park
Buffalo National River
Calvin College Ecosystem Preserve
Canaveral National Seashore
Cape Breton Highlands National Park
Cape Romain National Wildlife Refuge
Carolinian-South Atlantic Biosphere Reserve
Cascade Mountains leeward forests
Catoctin Mountain Park
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 tall grasslands
Central U.S. hardwood forests
Champlain-Adirondack Biosphere Reserve
Chattahoochee River National Recreation Area
Chesapeake & Ohio Canal National Hist. Park
Chickasaw National Recreation Area
Chippewa Nature Center
Colonial National Historic Park
Congaree Swamp National Park
Coweeta Hydrologic Laboratory LTER Site
Crosswinds Marsh
Cumberland Island National Seashore
Cuyahoga Valley National Park
De Soto National Wildlife Refuge
East Central Texas forests
Eastern Canadian forests
Eastern forest-boreal transition
Eastern Great Lakes lowland forests
Edwards Plateau savanna
Edwin S. George Reserve
Effigy Mounds National Monument
Everglades
Fathom Five National Marine Park
Felsenthal National Wildlife Refuge
Flint Hills tall grasslands
Florida sand pine scrub
Forillon National Park
Fort Caroline National Memorial
Fort Matanzas National Monument
Fort Necessity National Battlefield
Fort Pulaski National Monument
Fraser Plateau and Basin complex
Friendship Hill National Historic Site
Fundy National Park
George WA Carver National Monument
George Washington Birthplace National Monument
George Washington Memorial Parkway
Georgian Bay Islands National Park
Gettysburg National Military Park
Glacier National Park
Grandfather Mountain
Great Smoky Mountains National Park
Great Swamp National Wildlife Refuge
Greenwater Provincial Park
Gulf of St. Lawrence lowland forests
H.J. Andrews Biosphere Reserve
Homestead National Monument of America
Horicon National Wildlife Refuge
Horseshoe Bend National Military Park
Hot Springs National Park
Indiana Dunes National Lakeshore
Jasper National Park
Jean Lafitte National Hist. Park & Preserve
Kejimkujik National Park
Kejimkujik Seaside Adjunct
Konza Prairie Biosphere Reserve
Kootenay National Park
Kouchibouguac National Park
La Mauricie National Park
Lacassine National Wildlife Refuge
Lake Chelan National Recreation Area
Lake Superior Provincial Park
Land Between the Lakes Biosphere Reserve
Lincoln Boyhood National Memorial
Little River National Wildlife Refuge
Little St. Simons Island
Long Point Biosphere Reserve
Madrean Pine-Oak Woodlands
Mammoth Cave Area Biosphere Reserve (Natn'l Park)
Manassas National Battlefield Park
Mesoamerica
Mid-Continental Canadian forests
Middle Atlantic coastal forests
Midwestern Canadian Shield forests
Mississippi lowland forests
Morristown National Historical Park
Mount Rainier National Park
Mount Revelstoke National Park
Muskwa-Slave Lake forests
Nahanni National Park Reserve
National Capital Region - East
Nebraska Sand Hills mixed grasslands
New England-Acadian forests
New River Gorge National River
Niagara Escarpment Biosphere Reserve
North America
North Central Rockies forests
Northeastern coastal forests
Northern Cordillera forests
Northern mixed grasslands
Northern tall grasslands
Northern transitional alpine forests
Oak Ridge National Environmental Research Park
Ocmulgee National Monument
Okanagan dry forests
Okefenokee National Wildlife Refuge
Olympic Biosphere Reserve
Ozark Mountain forests
Ozark National Scenic Riverways
Palouse grasslands
Pictured Rocks National Lakeshore
Piney Woods forests
Prince Albert National Park
Prince Edward Island National Park
Prince William Forest Park
Puget lowland forests
Pukaskwa National Park
Redwood National Park
Richmond National Battlefield Park
Riding Mountain Biosphere Reserve
Rock Creek Park
Rondeau Provincial Park
Roosevelt Vanderbilt National Historic Site
Saint Croix International Historic Site
Saint Lawrence Islands National Park
Salt Plains National Wildlife Refuge
San Antonio Missions National Historical Park
Santee Coastal Reserve and Washo Reserve
Saratoga National Historical Park
Shenandoah National Park
Sierra Madre de Oaxaca pine-oak forests
Sierra Madre del Sur pine-oak forests
Sierra Madre Occidental pine-oak forests
Sleeping Bear Dunes National Lakeshore
South Atlantic Coastal Plain Biosphere Reserve
South Florida rocklands
Southeastern conifer forests
Southeastern mixed forests
Southern Appalachian Biosphere Reserve
Southern Great Lakes forests
Southwest Nova Biosphere Reserve
Tawas Point State Park
Tennessee River Gorge
Texas blackland prairies
Thomas Stone National Historic Site
Trans-Mexican Volcanic Belt pine-oak forests
Upper Midwest forest-savanna transition
Upper Miss. River Nat'l Wildlife Refuge
Valley Forge National Historical Park
Vicksburg National Military Park
Virginia Coast Biosphere Reserve
Voyageurs National Park
Waterton Biosphere Reserve
Western Great Lakes forests
Western Gulf Coastal grasslands
Wheeler National Wildlife Refuge
Wilson's Creek National Battlefield
Yoho National Park

Attributes / relations provided by
♦ 1Blarina brevicauda, Sarah B. George, Jerry R. Choate, and Hugh H. Genoways, MAMMALIAN SPECIES No. 261, pp. 1-9 (1986)
♦ 2Predators of the Swallow-Tailed Kite in Southern Louisiana and Mississippi, Jennifer O. Coulson, Thomas D. Coulson, Sherry A. DeFrancesch, and Thomas W. Sherry, Journal of Raptor Research 42(1):1-12. 2008
♦ 3Glaucomys sabrinus, Nancy Wells-Gosling and Lawrence R. Heaney, Mammalian Species No. 229, pp. 1-8 (1984)
♦ 4DIET OF THE GREAT HORNED OWL IN THE CRESTON VALLEY, BRITISH COLUMBIA, 1998 - 2005, Linda M. Van Damme, Wildlife Afield 2:2 December 2005, pp. 73-78
♦ 5Study of Northern Virginia Ecology
♦ 6Microtus pinetorum, Michael J. Smolen, Mammalian Species No. 147, pp. 1-7 (1981)
♦ 7Mustela frenata, Steven R. Sheffield and Howard H. Thomas, MAMMALIAN SPECIES No. 570, pp. 1-9 (1997)
♦ 8Sorex vagrans, Scott W. Gillihan and Kerry R. Foresman, MAMMALIAN SPECIES No. 744, pp. 1–5 (2004)
♦ 9Sylvilagus palustris, Joseph A. Chapman and Gale R. Willner, Mammalian Species No. 153, pp. 1-3 (1981)