Diet Overlap

Somateria mollissima (Common Eider)
Calidris pusilla (Semipalmated Sandpiper)

Common Diet

Abra marshalli (Baltic macoma)

Common Habitat

Acadia National Park
Aleutian Islands Biosphere Reserve
Arctic coastal tundra
Arctic foothills tundra
Arctic National Wildlife Refuge
Assateague Island National Seashore
Aulavik National Park
Baffin coastal tundra
Beringia lowland tundra
Beringia upland tundra
Biscayne National Park
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
Cumberland Island National Seashore
Davis Highlands tundra
Eastern Canadian forests
Eastern Canadian Shield taiga
Forillon National Park
Fundy National Park
Gates of the Arctic National Park
Glacier Bay National Park and Preserve
Gros Morne National Park
High Arctic tundra
Ivvavik National Park
Kejimkujik Seaside Adjunct
Kouchibouguac National Park
Low Arctic tundra
Middle Arctic tundra
Mingan Archipelago National Park Reserve
Minsmere to Walberswick Heaths and Marshes
Niagara Escarpment Biosphere Reserve
Noatak Biosphere Reserve
North America
North Norfolk Coast
Polar Bear Provincial Park
Prince Edward Island National Park
Queen Maud Gulf Bird Sanctuary
Rondeau Provincial Park
Saguenay - St. Lawrence Marine Park
Southern Hudson Bay taiga
Terra Nova National Park
Torngat Mountain tundra
Tuktut Nogait National Park
Ukkusiksalik National Park
Virginia Coast Biosphere Reserve
Walker Bay Field Station
Wapusk National Park

Attributes / relations provided by
♦ 1Energy flow of a boreal intertidal ecosystem, the Sylt-Rømø Bight, Dan Baird, Harald Asmus, Ragnhild Asmus, Mar Ecol Prog Ser 279: 45–61, 2004
♦ 2del Hoyo, J., Elliott, A., Sargatal, J., Christie, D.A. & de Juana, E. (eds.). Handbook of the Birds of the World Alive. Lynx Edicions, Barcelona.