Diet Overlap

Bonasa umbellus (Ruffed Grouse)
Haemorhous cassinii (Cassin's Finch)

Common Diet

Populus tremuloides (quaking aspen)

Common Habitat

Banff National Park
Blue Mountains forests
British Columbia mainland coastal forests
California Floristic Province
Cascade Mountains leeward forests
Central and Southern Cascades forests
Central Pacific coastal forests
Colorado Plateau shrublands
Coram Biosphere Reserve
Crater Lake National Park
Craters of the Moon National Monument
Eastern Cascades forests
Fraser Plateau and Basin complex
Grand Teton National Park
Great Basin National Park
Great Basin shrub steppe
Klamath-Siskiyou forests
Kootenay National Park
Lake Roosevelt National Recreation Area
Lassen Volcanic National Park
Lava Beds National Monument
Montana Valley and Foothill grasslands
Mount Rainier National Park
Mount Revelstoke National Park
North America
North Central Rockies forests
Northern California coastal forests
Northern short grasslands
Oregon Caves National Monument
Puget lowland forests
Sevilleta LTER Site
Snake-Columbia shrub steppe
South Central Rockies forests
Wasatch and Uinta montane forests
Waterton Biosphere Reserve
Willamette Valley forests
Wyoming Basin shrub steppe
Yellowstone Biosphere Reserve
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.