Diet Overlap

Podiceps auritus (Horned Grebe)
Ardea herodias (Great Blue Heron)

Common Diet

Leptocottus armatus (Cabezon)

Common Habitat

Acadia National Park
Alaska-St. Elias Range tundra
Algonquin Provincial Park
Apostle Islands National Lakeshore
Arkansas Post National Memorial
Audubon National Wildlife Refuge
Badlands National Park
Banff National Park
Big Cypress National Preserve
Big Thicket Biosphere Reserve
Biscayne National Park
Blackbeard Island National Wildlife Refuge
Blackwater National Wildlife Refuge
Bombay Hook National Wildlife Refuge
Bruce Peninsula National Park
Cabrillo National Monument
California Coast Ranges Biosphere Reserve
Canadian Aspen forests and parklands
Canaveral National Seashore
Cape Breton Highlands National Park
Cape Cod National Seashore
Cape Lookout National Seashore
Carolinian-South Atlantic Biosphere Reserve
Cedar Creek LTER Site
Central Canadian Shield forests
Central Gulf Coastal Plain Biosphere Reserve
Champlain-Adirondack Biosphere Reserve
Channel Islands National Marine Sanctuary
Channel Islands National Park
Chattahoochee River National Recreation Area
Chesapeake & Ohio Canal National Hist. Park
Colonial National Historic Park
Creighton Ranch Preserve
Crosswinds Marsh
Cumberland Island National Seashore
Curecanti National Recreation Area
De Soto National Wildlife Refuge
Death Valley National Park
Deer Flat National Wildlife Refuge
Eastern Canadian forests
Eastern forest-boreal transition
Effigy Mounds National Monument
Elk Island National Park
Elkhorn Slough Preserve
Farallon National Wildlife Refuge
Fathom Five National Marine Park
Felsenthal National Wildlife Refuge
Florida Keys National Marine Sanctuary
Fort Caroline National Memorial
Fort Matanzas National Monument
Fort Pulaski National Monument
Fundy National Park
Gateway National Recreation Area
George Washington Birthplace National Monument
George Washington Memorial Parkway
Georgian Bay Islands National Park
Gettysburg National Military Park
Glacier Bay National Park and Preserve
Glen Canyon National Recreation Area
Golden Gate National Recreation Area
Grasslands National Park
Gray Lodge State Wildlife Area
Great Smoky Mountains National Park
Great Swamp National Wildlife Refuge
Gulf Islands National Park
Gwaii Haanas National Park Reserve
Horicon National Wildlife Refuge
Indiana Dunes National Lakeshore
Isle Royale Biosphere Reserve
Jasper National Park
Jean Lafitte National Hist. Park & Preserve
Kejimkujik Seaside Adjunct
Kellogg Biological Station LTER Site
Kootenay National Park
Kouchibouguac National Park
La Mauricie National Park
Lacassine National Wildlife Refuge
Lake Chelan 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
Lava Beds National Monument
Little St. Simons Island
Long Point Biosphere Reserve
Mid-Continental Canadian forests
Midwestern Canadian Shield forests
Mojave and Colorado Deserts Biosphere Reserve
Montana Valley and Foothill grasslands
Mount Arrowsmith
Mount Revelstoke National Park
New River Gorge National River
Nez Perce National Historical Park
Niagara Escarpment Biosphere Reserve
North America
North Central Rockies forests
Northern mixed grasslands
Northern Pacific coastal forests
Northern short grasslands
Northern tall grasslands
Northern transitional alpine forests
Oak Ridge National Environmental Research Park
Okefenokee National Wildlife Refuge
Olympic Biosphere Reserve
Pacific Coastal Mountain icefields and tundra
Pacific Rim National Park Reserve
Padre Island National Seashore
Paine Preserve
Pictured Rocks National Lakeshore
Pipe Spring National Monument
Point Pelee National Park
Point Reyes National Seashore
Prince Albert National Park
Prince Edward Island National Park
Pukaskwa National Park
Redberry Lake Biosphere Reserve
Redwood National Park
Reserva de la Biosfera El Vizcaino
Riding Mountain Biosphere Reserve
Rocky Mountain Biosphere Reserve
Rondeau Provincial Park
Saint Croix International Historic Site
Saint Lawrence Islands National Park
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
Sleeping Bear Dunes National Lakeshore
South Atlantic Coastal Plain Biosphere Reserve
Southern Appalachian Biosphere Reserve
Tawas Point State Park
Tennessee River Gorge
Upper Miss. River Nat'l Wildlife Refuge
Valley Forge National Historical Park
Virginia Coast Biosphere Reserve
Voyageurs National Park
Waterton Biosphere Reserve
Western Great Lakes forests
Western Michigan University’s Asylum Lake
Wheeler National Wildlife Refuge
White Sands National Monument
Yellowstone Biosphere Reserve
Yoho National Park
Zion National Park

Attributes / relations provided by
♦ 1Food Web Relationships of Northern Puget Sound and the Strait of Juan de Fuca : a Synthesis of the Available Knowledge, Charles A. Simenstad, Bruce S. Miller, Carl F. Nyblade, Kathleen Thornburgh, and Lewis J. Bledsoe, EPA-600 7-29-259 September 1979