Diet Overlap

Gavia stellata (Red-throated Loon)
Phalacrocorax auritus (Double-crested Cormorant)

Common Diet

Clupea harengus (Yawling)

Common Habitat

Acadia National Park
Alaska Maritime National Wildlife Refuge
Aleutian Islands Biosphere Reserve
Apostle Islands National Lakeshore
Assateague Island National Seashore
Bandelier National Monument
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
Canaveral National Seashore
Cape Breton Highlands National Park
Cape Cod National Seashore
Cape Hatteras National Seashore
Cape Lookout National Seashore
Cape Romain National Wildlife Refuge
Carolinian-South Atlantic Biosphere Reserve
Central Gulf Coastal Plain Biosphere Reserve
Channel Islands National Marine Sanctuary
Channel Islands National Park
Cumberland Island National Seashore
Elkhorn Slough Preserve
Farallon National Wildlife Refuge
Fathom Five National Marine Park
Florida Keys National Marine Sanctuary
Forillon National Park
Fort Matanzas National Monument
Fort Pulaski National Monument
Fundy National Park
Gateway National Recreation Area
Georgian Bay Islands National Park
Glacier Bay National Park and Preserve
Golden Gate National Recreation Area
Gulf Islands National Park
Gwaii Haanas National Park Reserve
Indiana Dunes National Lakeshore
Isle Royale Biosphere Reserve
Kejimkujik Seaside Adjunct
Kouchibouguac National Park
Lake Superior Provincial Park
Lanphere-Christensen Dunes Preserve
Little St. Simons Island
Long Point Biosphere Reserve
Mingan Archipelago National Park Reserve
Mojave and Colorado Deserts Biosphere Reserve
Mount Arrowsmith
Niagara Escarpment Biosphere Reserve
North America
Olympic Biosphere Reserve
Pacific Rim National Park Reserve
Padre Island National Seashore
Philip L. Boyd Deep Canyon Desert Research Center
Point Reyes National Seashore
Prince Edward Island National Park
Pukaskwa National Park
Redwood National Park
Rondeau Provincial Park
Saguenay - St. Lawrence Marine Park
Saint Lawrence Islands National Park
Santa Cruz Island Preserve
Santa Monica Mountains National Recreation Area
South Atlantic Coastal Plain Biosphere Reserve
Tawas Point State Park
Virginia Coast Biosphere Reserve
Voyageurs National Park
Waterton Biosphere Reserve
Wheeler National Wildlife Refuge
Yellowstone Biosphere Reserve

Attributes / relations provided by
1del Hoyo, J., Elliott, A., Sargatal, J., Christie, D.A. & de Juana, E. (eds.). Handbook of the Birds of the World Alive. Lynx Edicions, Barcelona.
2Food 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