Diet Overlap

Phalacrocorax auritus (Double-crested Cormorant)
Clangula hyemalis (Oldsquaw)

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
Assateague Island National Seashore
Bighorn Canyon National Recreation Area
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
Carolinian-South Atlantic Biosphere Reserve
Central Gulf Coastal Plain Biosphere Reserve
Chattahoochee River National Recreation Area
Chesapeake & Ohio Canal National Hist. Park
Clayoquot Sound
Colonial National Historic Park
Effigy Mounds National Monument
Elk Island National Park
Elkhorn Slough Preserve
Farallon National Wildlife Refuge
Fathom Five National Marine Park
Fire Island National Seashore
Florida Keys National Marine Sanctuary
Forillon National Park
Fort Pulaski National Monument
Fundy National Park
Gateway National Recreation Area
George Washington Birthplace National Monument
Georgian Bay Islands National Park
Glacier Bay National Park and Preserve
Glen Canyon National Recreation Area
Golden Gate National Recreation Area
Gros Morne National Park
Gwaii Haanas National Park Reserve
Isle Royale Biosphere Reserve
Kejimkujik Seaside Adjunct
Kouchibouguac National Park
Lake Superior Provincial Park
Long Point Biosphere Reserve
Mingan Archipelago National Park Reserve
Mount Arrowsmith
Niagara Escarpment Biosphere Reserve
North America
Olympic Biosphere Reserve
Pacific Rim National Park Reserve
Padre Island National Seashore
Pictured Rocks National Lakeshore
Point Pelee National Park
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
San Juan Island National Historical Park
Santa Monica Mountains National Recreation Area
Santee Coastal Reserve and Washo Reserve
Sevilleta LTER Site
South Atlantic Coastal Plain Biosphere Reserve
Tawas Point State Park
Terra Nova National Park
Upper Miss. River Nat'l Wildlife Refuge
Valley Forge National Historical Park
Virginia Coast Biosphere Reserve
Voyageurs National Park
Waterton Biosphere Reserve
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
♦ 2Winter feeding ecology and trophic relationships of Oldsquaws and White-winged Scoters on Kachemak Bay, Alaska, Gerald A. Sanger and Robert D. Jones, Jr., Canadian Wildlife Service, 1984