Diet Overlap

Larus delawarensis (Ring-billed Gull) Strix varia (Barred Owl)

Common Diet

Lithobates catesbeianus (American Bullfrog) Notemigonus crysoleucas (Golden shiner minnow) Semotilus atromaculatus (Horned dace)

Common Habitat

Acadia National Park Algonquin Provincial Park Allegheny Highlands forests Apostle Islands National Lakeshore Appalachian mixed mesophytic 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 California Coast Ranges Biosphere Reserve 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 forest-grasslands transition Central Gulf Coastal Plain Biosphere Reserve Central Pacific coastal forests 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 Crosswinds Marsh Cumberland Island National Seashore Cuyahoga Valley National Park De Soto National Wildlife Refuge Eastern Canadian forests Eastern forest-boreal transition Eastern Great Lakes lowland forests Edwin S. George Reserve Effigy Mounds National Monument Everglades Fathom Five National Marine Park Felsenthal National Wildlife Refuge Florida sand pine scrub Forillon National Park Fort Caroline National Memorial Fort Matanzas National Monument Fort Pulaski National Monument Fundy National Park George Washington Birthplace National Monument George Washington Memorial Parkway Georgian Bay Islands National Park Gettysburg National Military Park Glacier National Park Great Smoky Mountains National Park Great Swamp National Wildlife Refuge Greenwater Provincial Park Gulf of St. Lawrence lowland forests Hope College Biology Nature Preserve 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 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 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 National Capital Region - East New England-Acadian forests New River Gorge National River Niagara Escarpment Biosphere Reserve North America North Central Rockies forests Northeastern coastal forests Northern mixed grasslands Northern tall grasslands Oak Ridge National Environmental Research Park Ocmulgee National Monument Okanagan dry forests Olympic Biosphere Reserve Ozark Mountain forests Palouse grasslands Pictured Rocks National Lakeshore Piney Woods forests Prince Albert National Park Prince Edward Island National Park Puget lowland forests Pukaskwa National Park Redwood National 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 Santee Coastal Reserve and Washo Reserve Saratoga National Historical Park Sierra Madre de Oaxaca 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 Tawas Point State Park Tennessee River Gorge 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 Yoho National Park