Diet Overlap

Ardea herodias (Great Blue Heron) Charadrius vociferus (Killdeer)

Common Diet

Corydalus cornutus (dobsonfly)

Common Habitat

Acadia National Park Alaska-St. Elias Range tundra Algonquin Provincial Park Allegheny Highlands forests Alto Golfo de California y Delta del Rio Colorado Amistad National Recreation Area Antietam National Battlefield Anza-Borrego Desert State Park, CA Apostle Islands National Lakeshore Appalachian mixed mesophytic forests Appalachian-Blue Ridge forests Arches National Park Arizona Mountains forests Arkansas Post National Memorial Atlantic coastal pine barrens Audubon National Wildlife Refuge Aztec Ruins National Monument Badlands National Park Bahamian pine mosaic Bahamoan-Antillean mangroves Baja California desert Bajío dry forests Balsas dry forests Bandelier National Monument Banff National Park Beaver Creek Biosphere Reserve Belizean pine forests Bermuda subtropical conifer forests Big Bend Biosphere Reserve Big Cypress National Preserve Big Morongo Canyon Preserve Big Thicket Biosphere Reserve Bighorn Canyon National Recreation Area Biscayne National Park Black Canyon of the Gunnison National Park Blackbeard Island National Wildlife Refuge Blackwater National Wildlife Refuge Blue Mountains forests Boggs Lake Preserve Bombay Hook National Wildlife Refuge British Columbia mainland coastal forests Bruce Peninsula National Park Bryce Canyon National Park Buenavista Buffalo National River Cabrillo National Monument 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 Calvin College Ecosystem Preserve Canadian Aspen forests and parklands Canaveral National Seashore Canyonlands National Park Cape Breton Highlands National Park Cape Cod National Seashore Cape Hatteras National Seashore Cape Lookout National Seashore Cape Romain National Wildlife Refuge Capital Reef National Park Caribbean Islands Caribbean shrublands Carlsbad Caverns National Park Carolinian-South Atlantic Biosphere Reserve Carrizo Plain Preserve Casa Grande National Monument Catoctin Mountain Park Cedar Creek LTER Site Central American Atlantic moist forests Central American dry forests Central American montane forests Central American pine-oak forests Central and Southern Cascades forests Central and Southern mixed grasslands Central Canadian Shield forests Central forest-grasslands transition Central Gulf Coastal Plain Biosphere Reserve Central Mexican matorral Central Pacific coastal forests Central Plains Biosphere Reserve Central tall grasslands Central U.S. hardwood forests Champlain-Adirondack Biosphere Reserve Channel Islands National Marine Sanctuary Channel Islands National Park Chattahoochee River National Recreation Area Chiapas Depression dry forests Chiapas montane forests Chihuahuan desert Chimalapas montane forests Chippewa Nature Center Chiricahua National Monument Chocó-Darién moist forests Ciénaga de Zapata National Park Coachella Valley Preserve Colonial National Historic Park Colorado National Monument Colorado Plateau shrublands Colorado Rockies forests Congaree Swamp National Park Cook Inlet taiga Copper Plateau taiga Cordillera Volcanica Central Costa Rican seasonal moist forests Cosumnes River Preserve Crater Lake National Park Craters of the Moon National Monument Creighton Ranch Preserve Crosswinds Marsh Cuban cactus scrub Cuban dry forests Cuban moist forests Cuban pine forests Cuban wetlands Cumberland Island National Seashore Curecanti National Recreation Area Cuyahoga Valley National Park De Soto National Wildlife Refuge Death Valley National Park Deer Flat National Wildlife Refuge Devils Tower National Monument Dinosaur National Monument Dos Palmas Preserve Dye Creek Preserve East Central Texas forests Eastern Canadian forests Eastern Cascades forests Eastern forest-boreal transition Eastern Great Lakes lowland forests Edwards Plateau savanna Edwin S. George Reserve Effigy Mounds National Monument El Malpais National Monument El Parque Estatal Lagunas de Yalahau Elk Island National Park Elkhorn Slough Preserve Enriquillo wetlands Everglades Farallon National Wildlife Refuge Fathom Five National Marine Park Felsenthal National Wildlife Refuge Fire Island National Seashore Flint Hills tall grasslands Florida Keys National Marine Sanctuary Forillon National Park Fort Caroline National Memorial Fort Davis National Historic Site Fort Larned National Historic Site Fort Matanzas National Monument Fort Necessity National Battlefield Fort Union National Monument Fossil Butte National Monument Friendship Hill National Historic Site Fundy National Park Gateway National Recreation Area George WA Carver National Monument George Washington Birthplace National Monument Georgian Bay Islands National Park Gettysburg National Military Park Glacier Bay National Park and Preserve Glacier National Park Glen Canyon National Recreation Area Golden Gate National Recreation Area Grand Canyon National Park Grand Teton National Park Grasslands National Park Gray Lodge State Wildlife Area Great Basin montane forests Great Basin National Park Great Basin shrub steppe Great Smoky Mountains National Park Great Swamp National Wildlife Refuge Greenwater Provincial Park Gros Morne National Park Guadalupe Mountains National Park Gulf Islands National Park Gulf of California xeric scrub Gulf of St. Lawrence lowland forests Gwaii Haanas National Park Reserve Hispaniolan dry forests Hispaniolan moist forests Hispaniolan pine forests Homestead National Monument of America Horicon National Wildlife Refuge Hovenweep National Monument Île-à-Vache Indiana Dunes National Lakeshore Isle Royale Biosphere Reserve Isthmian-Atlantic moist forests Isthmian-Pacific moist forests Jalisco dry forests Jamaican dry forests Jamaican moist forests Jasper National Park Jean Lafitte National Hist. Park & Preserve Jepson Prairie Preserve Joshua Tree National Park Kaloko-Honokohau National Historical Park Kaweah Oaks Preserve Kejimkujik Seaside Adjunct Kellogg Biological Station LTER Site Kern River Preserve Klamath-Siskiyou forests Knife River Indian Villages National Hist. Site Konza Prairie Biosphere Reserve Kootenay National Park Kouchibouguac National Park La Amistad International Park La Mauricie National Park La Selva Biological Station Lacassine National Wildlife Refuge Lake Chelan National Recreation Area Lake Mead National Recreation Area Lake Meredith 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 Leeward Islands moist forests Lesser Antillean dry forests Lincoln Boyhood National Memorial Little River National Wildlife Refuge Little St. Simons Island Long Point Biosphere Reserve Madrean Pine-Oak Woodlands Magdalena-Urabá moist forests Mammoth Cave Area Biosphere Reserve (Natn'l Park) Maya Mesa Verde National Park Meseta Central matorral Mesoamerica Mid-Continental Canadian forests Middle Atlantic coastal forests Midwestern Canadian Shield forests Miskito pine forests Mississippi lowland forests Mojave and Colorado Deserts Biosphere Reserve Mojave desert Montana Valley and Foothill grasslands Montes Azules Morristown National Historical Park Motagua Valley thornscrub Mount Arrowsmith Navajo National Monument Nebraska Sand Hills mixed grasslands New England-Acadian forests New Jersey Pinelands Biosphere Reserve New River Gorge National River Nez Perce National Historical Park Niagara Escarpment Biosphere Reserve Nipomo Dunes Preserve North America North Central Rockies forests Northeastern coastal forests Northern California coastal forests Northern mixed grasslands Northern Pacific coastal forests Northern short grasslands Northern tall grasslands Northern transitional alpine forests Oak Ridge National Environmental Research Park Oaxacan montane forests Ocmulgee National Monument Okanagan dry forests Okefenokee National Wildlife Refuge Olympic Biosphere Reserve Organ Pipe Cactus Biosphere Reserve Ozark Mountain forests Ozark National Scenic Riverways Pacific Coastal Mountain icefields and tundra Pacific Rim National Park Reserve Padre Island National Seashore Paine Preserve Palo Verde National Park Palouse grasslands Panamanian dry forests Pantanos de Centla Petén-Veracruz moist forests Petrified Forest National Park Philip L. Boyd Deep Canyon Desert Research Center Pictured Rocks National Lakeshore Piney Woods forests Pinnacles National Monument Pipe Spring National Monument Pipestone National Monument Point Pelee National Park Point Reyes National Seashore Prince Albert National Park Prince Edward Island National Park Puerto Rican dry forests Puerto Rican moist forests Puget lowland forests Pukaskwa National Park Queen Charlotte Islands Redberry Lake Biosphere Reserve Redwood National Park Reserva de la Biosfera de Sian Ka'an Reserva de la Biosfera Sierra Gorda Reserva de la Michilia Reserva de Mapimi Reserve de la Biosphere de Charlevoix Riding Mountain Biosphere Reserve Rocky Mountain Biosphere Reserve Rondeau Provincial Park Roosevelt Vanderbilt National Historic Site Saguenay - St. Lawrence Marine Park Saint Croix International Historic Site Saint Lawrence Islands National Park Saint-Gaudens National Historic Site Salt Plains National Wildlife Refuge Samuel P. Taylor State Park San Dimas Biosphere Reserve San Joaquin Biosphere Reserve San Juan Island National Historical Park San Lucan xeric scrub Sandy Point National Wildlife Refuge Santa Cruz Island Preserve Santa Monica Mountains National Recreation Area Santee Coastal Reserve and Washo Reserve Saratoga National Historical Park Scotts Bluff National Monument Seaflower Sequoia and Kings Canyon Biosphere Reserve Shipstern Nature Reserve Shortgrass Steppe LTER Site Sierra de la Laguna dry forests Sierra de la Laguna pine-oak forests Sierra de los Tuxtlas Sierra Juarez and San Pedro Martir pine-oak forests Sierra Madre de Chiapas moist forest Sierra Madre de Oaxaca pine-oak forests Sierra Madre del Sur pine-oak forests Sierra Madre Occidental pine-oak forests Sierra Madre Oriental pine-oak forests Sierra Nevada forests Sinaloan dry forests Sinú Valley dry forests Sleeping Bear Dunes National Lakeshore Snake-Columbia shrub steppe Sonoran desert Sonoran-Sinaloan transition subtropical dry forest South Atlantic Coastal Plain Biosphere Reserve South Central Rockies forests Southeastern conifer forests Southeastern mixed forests Southern Appalachian Biosphere Reserve Southern Great Lakes forests Southern Pacific dry forests Sunset Crater Volcano National Monument Talamancan montane forests Tamaulipan matorral Tamaulipan mezquital Tawas Point State Park Tehuacán Valley matorral Tennessee River Gorge Texas blackland prairies Tikal National Park Tomales Bay State Park Trans-Mexican Volcanic Belt pine-oak forests Trinidad and Tobago moist forests Tuabaquey - Limones Ecological Reserve Tumbes-Choco-Magdalena Upper Midwest forest-savanna transition Upper Miss. River Nat'l Wildlife Refuge Valley Forge National Historical Park Veracruz dry forests Veracruz moist forests Veracruz montane forests Vic Fazio Yolo Wildlife Area Vicksburg National Military Park Vina Plains Preserve Virgin Islands Biosphere Reserve Virginia Coast Biosphere Reserve Voyageurs National Park Wasatch and Uinta montane forests 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 White Sands National Monument Willamette Valley forests Wilson's Creek National Battlefield Wind Cave National Park Windward Islands moist forests Winisk River Provincial Park Wupatki National Monument Wyoming Basin shrub steppe Yellowstone Biosphere Reserve Yoho National Park Yucatán dry forests Yucatán moist forests Zion National Park