Diet Overlap

Podiceps grisegena (Red-necked Grebe)
Phalacrocorax auritus (Double-crested Cormorant)

Common Diet

Ammodytes hexapterus (Stout sand lance)

Common Habitat

Acadia National Park
Alaska Maritime National Wildlife Refuge
Aleutian Islands Biosphere Reserve
Algonquin Provincial Park
Apostle Islands National Lakeshore
Audubon National Wildlife Refuge
Blackbeard Island National Wildlife Refuge
Bruce Peninsula National Park
California Coast Ranges Biosphere Reserve
Cape Breton Highlands National Park
Cape Cod National Seashore
Cape Hatteras National Seashore
Carolinian-South Atlantic Biosphere Reserve
Cedar Creek LTER Site
Central Gulf Coastal Plain Biosphere Reserve
Cumberland Island National Seashore
Death Valley National Park
Effigy Mounds National Monument
Elk Island National Park
Elkhorn Slough Preserve
Farallon National Wildlife Refuge
Fathom Five National Marine Park
Forillon National Park
Fort Pulaski National Monument
Fundy National Park
Gateway National Recreation Area
Georgian Bay Islands National Park
Glacier Bay National Park and Preserve
Glen Canyon National Recreation Area
Golden Gate National Recreation Area
Grasslands National Park
Gros Morne National Park
Gulf Islands National Park
Indiana Dunes National Lakeshore
Isle Royale Biosphere Reserve
Kejimkujik Seaside Adjunct
Kouchibouguac National Park
Lake Superior Provincial Park
Lava Beds National Monument
Little St. Simons Island
Long Point Biosphere Reserve
Mammoth Cave Area Biosphere Reserve (Natn'l Park)
Mojave and Colorado Deserts Biosphere Reserve
Mount Arrowsmith
Niagara Escarpment Biosphere Reserve
North America
Olympic Biosphere Reserve
Pacific Rim National Park Reserve
Pictured Rocks National Lakeshore
Point Reyes National Seashore
Prince Albert National Park
Pukaskwa National Park
Redberry Lake Biosphere Reserve
Redwood National Park
Riding Mountain Biosphere Reserve
Rondeau Provincial Park
Saguenay - St. Lawrence Marine Park
Saint Lawrence Islands National Park
San Juan Island National Historical Park
South Atlantic Coastal Plain Biosphere Reserve
Tawas Point State Park
Upper Miss. River Nat'l Wildlife Refuge
Valley Forge National Historical Park
Virginia Coast Biosphere Reserve
Voyageurs National Park
Waterton Biosphere Reserve
Western Michigan University’s Asylum Lake
Yellowstone Biosphere Reserve

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