Diet Overlap

Corvus corax (Northern Raven)
Lagopus leucura (White-tailed Ptarmigan)

Common Diet

Empetrum nigrum (black crowberry)

Common Habitat

Alaska Peninsula montane taiga
Alaska-St. Elias Range tundra
Alberta Mountain forests
Banff National Park
British Columbia mainland coastal forests
Central and Southern Cascades forests
Central British Columbia Mountain forests
Colorado Rockies forests
Cook Inlet taiga
Copper Plateau taiga
Denali Biosphere Reserve
Eastern Cascades forests
Fraser Biosphere Reserve
Fraser Plateau and Basin complex
Glacier Bay National Park and Preserve
Glacier National Park
Jasper National Park
Kootenay National Park
Mesa Verde National Park
Montana Valley and Foothill grasslands
Mount Rainier National Park
Mount Revelstoke National Park
Nahanni National Park Reserve
North America
North Central Rockies forests
Northern Pacific coastal forests
Northern transitional alpine forests
Okanagan dry forests
Pacific Coastal Mountain icefields and tundra
Palouse grasslands
Queen Charlotte Islands
Rocky Mountain Biosphere Reserve
Sequoia and Kings Canyon Biosphere Reserve
Snake-Columbia shrub steppe
South Central Rockies forests
Waterton Biosphere Reserve
Wrangell-St. Elias National Park and Preserve
Wyoming Basin shrub steppe
Yoho National Park
Yosemite National Park

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.