Diet Overlap

Lagopus muta (Rock Ptarmigan)
Poecile hudsonicus (Boreal Chickadee)

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
Arctic National Wildlife Refuge
British Columbia mainland coastal forests
Cascade Mountains leeward forests
Central British Columbia Mountain forests
Central Canadian Shield forests
Cook Inlet taiga
Copper Plateau taiga
Denali Biosphere Reserve
Eastern Canadian forests
Eastern Canadian Shield taiga
Fraser Plateau and Basin complex
Gates of the Arctic National Park
Gros Morne National Park
Interior Alaska-Yukon lowland taiga
Interior Yukon-Alaska alpine tundra
Ivvavik National Park
Kluane National Park and Reserve
Mid-Continental Canadian forests
Midwestern Canadian Shield forests
Muskwa-Slave Lake forests
Nahanni National Park Reserve
Newfoundland Highland forests
Noatak Biosphere Reserve
North America
North Central Rockies forests
Northern Canadian Shield taiga
Northern Cordillera forests
Northern Pacific coastal forests
Northern transitional alpine forests
Northwest Territories taiga
Ogilvie-MacKenzie alpine tundra
Okanagan dry forests
Pacific Coastal Mountain icefields and tundra
Palouse grasslands
South Avalon-Burin oceanic barrens
Southern Hudson Bay taiga
Wapusk National Park
Wrangell-St. Elias National Park and Preserve
Yukon Interior dry forests

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.
♦ 2Making The Forest And Tundra Wildlife Connection