Diet Overlap

Corvus corax (Northern Raven) Lemmus sibiricus (brown lemming)

Common Diet

Arctostaphylos alpinus (alpine bearberry) Empetrum nigrum (black crowberry) Vaccinium vitis-idaea (lingonberry)

Common Habitat

Alaska Peninsula montane taiga Alaska-St. Elias Range tundra Arctic coastal tundra Arctic foothills tundra Arctic National Wildlife Refuge Aulavik National Park Auyuittuq National Park Baffin coastal tundra Beringia lowland tundra Beringia upland tundra Bonanza Creek LTER Site British Columbia mainland coastal forests Brooks-British Range tundra Central British Columbia Mountain forests Cherskii-Kolyma mountain tundra Chukchi Peninsula tundra Cook Inlet taiga Davis Highlands tundra Denali Biosphere Reserve Fraser Plateau and Basin complex High Arctic tundra Interior Alaska-Yukon lowland taiga Interior Yukon-Alaska alpine tundra Ivvavik National Park Kluane National Park and Reserve Kronotskiy Biosphere Reserve Low Arctic tundra Middle Arctic tundra Muskwa-Slave Lake forests North America Northeast Siberian taiga Northern Canadian Shield taiga Northern Cordillera forests Northern transitional alpine forests Northwest Russian-Novaya Zemlya tundra Northwest Territories taiga Ogilvie-MacKenzie alpine tundra Ostrov Vrangelya (Wrangel Island) Zapovednik Pacific Coastal Mountain icefields and tundra Queen Maud Gulf Bird Sanctuary Scandinavian and Russian taiga Sirmilik National Park Southern Hudson Bay taiga Taimyr-Central Siberian tundra Tuktut Nogait National Park Ukkusiksalik National Park Vuntut National Park Walker Bay Field Station Wapusk National Park West Siberian taiga Wrangel Island arctic desert Yamal-Gydan tundra Yukon Interior dry forests