Diet Overlap

Corvus corax (Northern Raven)
Lagopus muta (Rock Ptarmigan)

Common Diet

Empetrum nigrum (black crowberry)

Common Habitat

Alaska Peninsula montane taiga
Alaska-St. Elias Range tundra
Alberta Mountain forests
Alberta-British Columbia foothills forests
Aleutian Islands Biosphere Reserve
Aleutian Islands tundra
Alps conifer and mixed forests
Altai alpine meadow and tundra
Altai montane forest and forest steppe
Andakill Protected Habitat Area
Arctic coastal tundra
Arctic foothills tundra
Arctic National Wildlife Refuge
Aulavik National Park
Auyuittuq National Park
Baffin coastal tundra
Baikalskiy Biosphere Reserve
Barguzinskiy Biosphere Reserve
Beinn Eighe National Nature Reserve
Ben Nevis
Ben Wyvis
Berchtesgaden Alps
Bering tundra
Beringia lowland tundra
Beringia upland tundra
British Columbia mainland coastal forests
Brooks-British Range tundra
Cairngorms
Caledon conifer forests
Cascade Mountains leeward forests
Celtic broadleaf forests
Central British Columbia Mountain forests
Central Canadian Shield forests
Central Pacific coastal forests
Cherskii-Kolyma mountain tundra
Chukchi Peninsula tundra
Cook Inlet taiga
Copper Plateau taiga
Da Hinggan-Dzhagdy Mountains conifer forests
Davis Highlands tundra
Denali Biosphere Reserve
East Siberian taiga
Eastern Canadian forests
Eastern Canadian Shield taiga
Fraser Plateau and Basin complex
Gates of the Arctic National Park
Glacier Bay National Park and Preserve
Great Lakes Basin desert steppe
Gros Morne National Park
Gwaii Haanas National Park Reserve
High Arctic tundra
Iceland boreal birch forests and alpine tundra
Interior Alaska-Yukon lowland taiga
Interior Yukon-Alaska alpine tundra
Ivvavik National Park
Junggar Basin semi-desert
Kamchatka Mountain tundra and forest tundra
Kamchatka-Kurile meadows and sparse forests
Kamchatka-Kurile taiga
Katunsky Biosphere Reserve
Kazakh forest steppe
Khangai Mountains conifer forests
Kluane National Park and Reserve
Kola Peninsula tundra
Kronotskiy Biosphere Reserve
Laidauredeltat
Lake Torne Area
Laplandskiy Biosphere Reserve
Low Arctic tundra
Mediterranean Basin
Mid-Continental Canadian forests
Middle Arctic tundra
Midwestern Canadian Shield forests
Muskwa-Slave Lake forests
Nahanni National Park Reserve
Newfoundland Highland forests
Noatak Biosphere Reserve
North America
North Atlantic moist mixed forests
North Central Rockies forests
North-east Greenland National Park
Northeast Siberian taiga
Northeastern Spain and Southern France Mediterranean forests
Northern Canadian Shield taiga
Northern Cordillera forests
Northern Pacific coastal forests
Northern transitional alpine forests
Northwest Iberian montane forests
Northwest Russian-Novaya Zemlya tundra
Northwest Territories taiga
Ogilvie-MacKenzie alpine tundra
Okanagan dry forests
Okhotsk-Manchurian taiga
Pacific Coastal Mountain icefields and tundra
Palouse grasslands
Parc National Suisse
Parco Nazionale dello Stelvio
Pechoro-Ilychskiy Biosphere Reserve
Puget lowland forests
Pyrenees conifer and mixed forests
Queen Charlotte Islands
Queen Maud Gulf Bird Sanctuary
Sayan Alpine meadows and tundra
Sayan Intermontane steppe
Sayan montane conifer forests
Sayano-Shushenskiy Biosphere Reserve
Scandinavian and Russian taiga
Scandinavian coastal conifer forests
Scandinavian Montane Birch forest and grasslands
Selenge-Orkhon forest steppe
Sirmilik National Park
South Avalon-Burin oceanic barrens
South Sakhalin-Kurile mixed forests
South Siberian forest steppe
Southern Hudson Bay taiga
Taimyr-Central Siberian tundra
Torngat Mountain tundra
Trans-Baikal Bald Mountain tundra
Trans-Baikal conifer forests
Triglav National Park
Tuktut Nogait National Park
Ubsunurskaya Kotlovina (Ubsunur Depression)
Ukkusiksalik National Park
Ural montane forests and tundra
Vuntut National Park
Walker Bay Field Station
Wapusk National Park
Western European broadleaf forests
Wrangell-St. Elias National Park and Preserve
Yamal-Gydan tundra
Yukon Interior dry forests

Attributes / relations provided by
♦ 1Making The Forest And Tundra Wildlife Connection
♦ 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.