Diet Overlap

Clangula hyemalis (Oldsquaw)
Rissa tridactyla (Black-legged Kittiwake)

Common Diet

Ammodytes hexapterus (Stout sand lance)
Pandalus goniurus (humpy shrimp)

Common Habitat

Acadia National Park
Alaska Maritime National Wildlife Refuge
Alaska-St. Elias Range tundra
Aleutian Islands Biosphere Reserve
Arctic coastal tundra
Arctic desert
Arctic foothills tundra
Arctic National Wildlife Refuge
Atlantic mixed forests
Baffin coastal tundra
Baie de Vilaine
Barguzinskiy Biosphere Reserve
Benacre to Easton Bavents Lagoons
Bering tundra
Beringia lowland tundra
Beringia upland tundra
Bohai Sea saline meadow
Cabrillo National Monument
Caerlaverock National Nature Reserve
California Coast Ranges Biosphere Reserve
Camargue
Canaveral National Seashore
Cape Cod National Seashore
Cape Hatteras National Seashore
Cape Lookout National Seashore
Carmarthen Bay and Estuaries/ Bae Caerfyrddin ac Aberoedd
Carolinian-South Atlantic Biosphere Reserve
Celtic broadleaf forests
Changjiang Plain evergreen forests
Chukchi Peninsula tundra
Cook Inlet taiga
Davis Highlands tundra
Dee Estuary/ Aber Dyfrdwy
DOÑANA
Dungeness
Elkhorn Slough Preserve
English Lowlands beech forests
Farallon National Wildlife Refuge
Florida Keys National Marine Sanctuary
Forillon National Park
Gateway National Recreation Area
Glacier Bay National Park and Preserve
Gros Morne National Park
Gwaii Haanas National Park Reserve
High Arctic tundra
Hokkaido deciduous forests
Hokkaido montane conifer forests
Hortobágy National Park
Huang He Plain mixed forests
Iceland boreal birch forests and alpine tundra
Isle of Rum National Nature Reserve
Ivvavik National Park
Japan
Kiskunsag Biosphere Reserve
Kola Peninsula tundra
Kouchibouguac National Park
Kronotskiy Biosphere Reserve
Lake Torne Area
Loch a`Phuill
Long Point Biosphere Reserve
Low Arctic tundra
Manchurian mixed forests
Middle Arctic tundra
Mingan Archipelago National Park Reserve
Mor Braz
Moray Firth
Neusiedler See-Osterreichischer Teil
Niagara Escarpment Biosphere Reserve
Nihonkai montane deciduous forests
North America
North Atlantic moist mixed forests
North Bull Island
North Norfolk Coast
North Norfolk Coast Biosphere Reserve
North-east Greenland National Park
Northeast China Plain deciduous forests
Northwest Russian-Novaya Zemlya tundra
Novosibirsk Islands arctic desert
Oceania
Olympic Biosphere Reserve
Ostrov Vrangelya (Wrangel Island) Zapovednik
Pacific Coastal Mountain icefields and tundra
Pacific Rim National Park Reserve
Padre Island National Seashore
Palava Protected Landscape Area
Pechoro-Ilychskiy Biosphere Reserve
Pembrokeshire Marine/ Sir Benfro Forol
Point Reyes National Seashore
Redwood National Park
Reserve Nationale de Camargue Biosphere Reserve
Rondeau Provincial Park
Ropotamo Complex
Saguenay - St. Lawrence Marine Park
Santa Monica Mountains National Recreation Area
Scandinavian coastal conifer forests
Sefton Coast
Sevilleta LTER Site
Sikhote-Alinskiy Biosphere Reserve
Sirmilik National Park
Sleeping Bear Dunes National Lakeshore
South Sakhalin-Kurile mixed forests
Southern Korea evergreen forests
Terra Nova National Park
Torngat Mountain tundra
Tweed Estuary
Ukkusiksalik National Park
Urdaibaiko Itsasadarra / Ría de Urdaibai
Virginia Coast Biosphere Reserve
Wrangel Island arctic desert

Attributes / relations provided by
♦ 1Winter 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
♦ 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