Diet Overlap

Larus delawarensis (Ring-billed Gull) Sturnus vulgaris (European Starling)

Common Diet

Gryllus pennsylvanicus (fall field cricket) Melanoplus differentialis (Differential Grasshopper) Phanaeus vindex (Dung beetle)

Common Habitat

Acadia National Park Algonquin Provincial Park Alto Golfo de California y Delta del Rio Colorado Amistad National Recreation Area Anza-Borrego Desert State Park, CA Apostle Islands National Lakeshore Arkansas Post National Memorial Badlands National Park Baja California desert Bandelier National Monument Banff National Park Big Bend Biosphere Reserve Big Cypress National Preserve Big Morongo Canyon Preserve Bighorn Canyon National Recreation Area Biscayne National Park Blackwater National Wildlife Refuge Bruce Peninsula National Park Buffalo National River Cabrillo National Monument California Coast Ranges Biosphere Reserve California coastal sage and chaparral California Floristic Province Calvin College Ecosystem Preserve Canaveral National Seashore Cape Breton Highlands National Park Cape Cod National Seashore Cape Hatteras National Seashore Cape Lookout National Seashore Carlsbad Caverns National Park Carolinian-South Atlantic Biosphere Reserve Carrizo Plain Preserve Cedar Creek LTER Site Central Gulf Coastal Plain Biosphere Reserve Central Mexican matorral Central Plains Biosphere Reserve Champlain-Adirondack Biosphere Reserve Channel Islands National Marine Sanctuary Channel Islands National Park Chattahoochee River National Recreation Area Chickasaw National Recreation Area Chihuahuan desert Chippewa Nature Center Coachella Valley Preserve Colonial National Historic Park Congaree Swamp National Park Cosumnes River Preserve Crater Lake National Park Creighton Ranch Preserve Crosswinds Marsh Curecanti National Recreation Area Cuyahoga Valley National Park De Soto National Wildlife Refuge Death Valley National Park Deer Flat National Wildlife Refuge Edwin S. George Reserve Effigy Mounds National Monument El Malpais National Monument Elk Island National Park Elkhorn Slough Preserve Farallon National Wildlife Refuge Fathom Five National Marine Park Felsenthal National Wildlife Refuge Fire Island National Seashore Florida Keys National Marine Sanctuary Forillon National Park Fort Caroline National Memorial Fort Matanzas National Monument Fundy National Park Gateway National Recreation Area George Washington Birthplace National Monument Georgian Bay Islands National Park Gettysburg National Military Park Glacier National Park Glen Canyon National Recreation Area Golden Gate National Recreation Area Grand Canyon National Park Grasslands National Park Gray Lodge State Wildlife Area Great Basin National Park Great Swamp National Wildlife Refuge Greenwater Provincial Park Gros Morne National Park Guadalupe Mountains National Park Gwaii Haanas National Park Reserve Horseshoe Bend National Military Park Hot Springs National Park Jasper National Park Jepson Prairie Preserve Jornada Biosphere Reserve Joshua Tree National Park Kaweah Oaks Preserve Kellogg Biological Station LTER Site Kern River Preserve Knife River Indian Villages National Hist. Site Konza Prairie Biosphere Reserve Kootenay National Park Kouchibouguac National Park La Mauricie National Park Lacassine National Wildlife Refuge Lake Chelan National Recreation Area Lake Roosevelt National Recreation Area Lake Superior Provincial Park Land Between the Lakes Biosphere Reserve Lanphere-Christensen Dunes Preserve Lassen Volcanic National Park Lava Beds National Monument Little River National Wildlife Refuge Long Point Biosphere Reserve Madrean Pine-Oak Woodlands Mammoth Cave Area Biosphere Reserve (Natn'l Park) Mesa Verde National Park Mingan Archipelago National Park Reserve Mojave and Colorado Deserts Biosphere Reserve Morristown National Historical Park Natural Bridges National Monument New River Gorge National River Nez Perce National Historical Park Niagara Escarpment Biosphere Reserve Nipomo Dunes Preserve North America Ocmulgee National Monument Olympic Biosphere Reserve Organ Pipe Cactus Biosphere Reserve Pacific Rim National Park Reserve Padre Island National Seashore Paine Preserve Philip L. Boyd Deep Canyon Desert Research Center Pictured Rocks National Lakeshore Pipe Spring National Monument Point Pelee National Park Point Reyes National Seashore Polar Bear Provincial Park Prince Albert National Park Prince Edward Island National Park Pukaskwa National Park Redberry Lake Biosphere Reserve Redwood National Park Riding Mountain Biosphere Reserve Rocky Mountain Biosphere Reserve Rondeau Provincial Park Roosevelt Vanderbilt National Historic Site Saint Croix International Historic Site Saint Lawrence Islands National Park San Dimas Biosphere Reserve San Juan Island National Historical Park 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 Juarez and San Pedro Martir pine-oak forests Sleeping Bear Dunes National Lakeshore Sonoran desert Sonoran-Sinaloan transition subtropical dry forest South Atlantic Coastal Plain Biosphere Reserve Southern Appalachian Biosphere Reserve Tamaulipan mezquital Tawas Point State Park Tennessee River Gorge Terra Nova National Park Thomas Stone National Historic Site Upper Miss. River Nat'l Wildlife Refuge Valley Forge National Historical Park Vicksburg National Military Park Virginia Coast Biosphere Reserve Voyageurs National Park Wapusk National Park Waterton Biosphere Reserve Western Gulf Coastal grasslands Western Michigan University’s Asylum Lake Whiskey-Shasta-Trinity National Recreation Area White Sands National Monument Wind Cave National Park Yellowstone Biosphere Reserve Yoho National Park Zion National Park