Diet Overlap

Larus delawarensis (Ring-billed Gull) Vulpes vulpes (Red Fox)

Common Diet

Gryllus pennsylvanicus (fall field cricket)

Common Habitat

Acadia National Park Algonquin Provincial Park Allegheny Highlands forests Appalachian mixed mesophytic forests Assateague Island National Seashore Atlantic coastal pine barrens Audubon National Wildlife Refuge Badlands National Park Bandelier National Monument Banff National Park Big Cypress National Preserve Big Thicket 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 Buffalo National River California Central Valley grasslands California coastal sage and chaparral California Floristic Province California interior chaparral and woodlands California montane chaparral and woodlands Calvin College Ecosystem Preserve Canadian Aspen forests and parklands Cape Breton Highlands National Park Cape Cod National Seashore Cape Romain National Wildlife Refuge Carolinian-South Atlantic Biosphere Reserve Carrizo Plain Preserve Cascade Mountains leeward forests Catoctin Mountain Park Central and Southern Cascades forests Central forest-grasslands transition Central Gulf Coastal Plain Biosphere Reserve Central Pacific coastal forests Central Plains Biosphere Reserve Central U.S. hardwood forests Champlain-Adirondack Biosphere Reserve Chattahoochee River National Recreation Area Chickasaw National Recreation Area Chippewa Nature Center Colonial National Historic Park Colorado Plateau shrublands Craters of the Moon National Monument Cuyahoga Valley National Park De Soto National Wildlife Refuge Deer Flat National Wildlife Refuge Eastern Canadian forests Eastern Cascades forests Eastern forest-boreal transition Eastern Great Lakes lowland forests Edwin S. George Reserve Effigy Mounds National Monument Elk Island National Park Elkhorn Slough Preserve Everglades Fathom Five National Marine Park Felsenthal National Wildlife Refuge Fire Island National Seashore Florida sand pine scrub Forillon National Park Fundy National Park Gateway National Recreation Area George Washington Memorial Parkway Georgian Bay Islands National Park Gettysburg National Military Park Grasslands National Park Great Swamp National Wildlife Refuge Greenwater Provincial Park Gros Morne National Park Gulf of St. Lawrence lowland forests Hope College Biology Nature Preserve Horseshoe Bend National Military Park Hot Springs National Park Indiana Dunes National Lakeshore Jasper National Park Jornada Biosphere Reserve Klamath-Siskiyou forests Knife River Indian Villages National Hist. Site Kouchibouguac National Park La Mauricie National Park Lacassine National Wildlife Refuge Lake Chelan 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 River National Wildlife Refuge Long Point Biosphere Reserve Mammoth Cave Area Biosphere Reserve (Natn'l 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 Montana Valley and Foothill grasslands Morristown National Historical Park New England-Acadian forests Niagara Escarpment Biosphere Reserve North America North Central Rockies forests Northeastern coastal forests Northern mixed grasslands Northern short grasslands Northern tall grasslands Oak Ridge National Environmental Research Park Ocmulgee National Monument Okanagan dry forests Olympic Biosphere Reserve Ozark Mountain forests Palouse grasslands Petrified Forest National Park Piney Woods forests Point Pelee National Park Point Reyes National Seashore Polar Bear Provincial Park Prince Albert National Park Prince Edward Island National Park Puget lowland forests Pukaskwa National Park Redberry Lake Biosphere Reserve Riding Mountain Biosphere Reserve Rocky Mountain Biosphere Reserve Rondeau Provincial Park Roosevelt Vanderbilt National Historic Site Saint Lawrence Islands National Park Santa Monica Mountains National Recreation Area Saratoga National Historical Park Sefton Coast Sequoia and Kings Canyon Biosphere Reserve Shortgrass Steppe LTER Site Sierra Nevada forests Sleeping Bear Dunes National Lakeshore Snake-Columbia shrub steppe South Avalon-Burin oceanic barrens South Central Rockies forests Southeastern conifer forests Southeastern mixed forests Southern Appalachian Biosphere Reserve Southern Great Lakes forests Tennessee River Gorge Terra Nova National Park Upper Midwest forest-savanna transition Upper Miss. River Nat'l Wildlife Refuge Valley Forge National Historical Park Voyageurs National Park Wapusk National Park Waterton Biosphere Reserve Western Great Lakes forests Western Gulf Coastal grasslands Western Michigan University’s Asylum Lake Western short grasslands Wheeler National Wildlife Refuge Whiskey-Shasta-Trinity National Recreation Area Willamette Valley forests Wrangell-St. Elias National Park and Preserve Yellowstone Biosphere Reserve Zion National Park