Diet Overlap

Calcarius lapponicus (Lapland Longspur)
Lagopus leucura (White-tailed Ptarmigan)

Common Diet

Empetrum nigrum (black crowberry)

Common Habitat

Alaska Peninsula montane taiga
Alaska-St. Elias Range tundra
Banff National Park
British Columbia mainland coastal forests
Central and Southern Cascades forests
Colorado Rockies forests
Copper Plateau taiga
Denali Biosphere Reserve
Eastern Cascades forests
Glacier Bay National Park and Preserve
Glacier National Park
Jasper National Park
Konza Prairie Biosphere Reserve
Montana Valley and Foothill grasslands
Mount Revelstoke National Park
Nahanni National Park Reserve
North America
North Central Rockies forests
Okanagan dry forests
Pacific Coastal Mountain icefields and tundra
Palouse grasslands
Snake-Columbia shrub steppe
South Central Rockies forests
Wrangell-St. Elias National Park and Preserve
Wyoming Basin shrub steppe
Yoho 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.