Diet Overlap

Gavia adamsii (Yellow-billed Loon)
Larus argentatus (Herring Gull)

Common Diet

Gadus morhua (rock cod)

Common Habitat

Alaska Maritime National Wildlife Refuge
Aleutian Islands Biosphere Reserve
Arctic National Wildlife Refuge
Barguzinskiy Biosphere Reserve
California Coast Ranges Biosphere Reserve
Cherskii-Kolyma mountain tundra
Chukchi Peninsula tundra
Denali Biosphere Reserve
East Siberian taiga
Elkhorn Slough Preserve
Flamborough Head
Gates of the Arctic National Park
Glacier Bay National Park and Preserve
Glen Canyon National Recreation Area
Gwaii Haanas National Park Reserve
Hokkaido deciduous forests
Hokkaido montane conifer forests
Ivvavik National Park
Japan
Kronotskiy Biosphere Reserve
Low Arctic tundra
Manchurian mixed forests
Mid-Continental Canadian forests
Middle Arctic tundra
Nahanni National Park Reserve
Niagara Escarpment Biosphere Reserve
Nihonkai evergreen forests
Nihonkai montane deciduous forests
Noatak Biosphere Reserve
North America
Northeast China Plain deciduous forests
Northeast Siberian coastal tundra
Northeast Siberian taiga
Northern Canadian Shield taiga
Northwest Russian-Novaya Zemlya tundra
Olympic Biosphere Reserve
Ostrov Vrangelya (Wrangel Island) Zapovednik
Pacific Rim National Park Reserve
Point Reyes National Seashore
Queen Maud Gulf Bird Sanctuary
Redwood National Park
Santa Monica Mountains National Recreation Area
Scandinavian coastal conifer forests
Scandinavian Montane Birch forest and grasslands
Taiheiyo evergreen forests
Taiheiyo montane deciduous forests
Taimyr-Central Siberian tundra
Taimyrsky Biosphere Reserve
Tuktut Nogait National Park
Ukkusiksalik National Park
West Siberian taiga
Wrangell-St. Elias National Park and Preserve
Yamal-Gydan tundra

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.
♦ 2Diets of adult and chick Herring Gulls Larus argentatus argenteus on Ailsa Craig, south-west Scotland., M. Nogales, B. Zonfrillo and P. Monaghan, SEABIRD 17: 56-63