Diet Overlap

Acanthis flammea (Common Redpoll) Lemmus sibiricus (brown lemming)

Common Diet

Arctagrostis latifolia (wideleaf polargrass) Betula intermedia (dwarf birch) Salix alaxensis (feltleaf willow)

Common Habitat

Alaska Peninsula montane taiga Alaska-St. Elias Range tundra Arctic coastal tundra Arctic foothills tundra Auyuittuq National Park Baffin coastal tundra Beringia lowland tundra Beringia upland tundra Bonanza Creek LTER Site British Columbia mainland coastal forests Brooks-British Range tundra Central British Columbia Mountain forests Cook Inlet taiga Davis Highlands tundra Denali Biosphere Reserve Fraser Plateau and Basin complex High Arctic tundra Interior Alaska-Yukon lowland taiga Interior Yukon-Alaska alpine tundra Ivvavik National Park Kluane National Park and Reserve Kronotskiy Biosphere Reserve Low Arctic tundra Muskwa-Slave Lake forests North America Northern Canadian Shield taiga Northern Cordillera forests Northwest Russian-Novaya Zemlya tundra Northwest Territories taiga Ogilvie-MacKenzie alpine tundra Pacific Coastal Mountain icefields and tundra Queen Maud Gulf Bird Sanctuary Scandinavian and Russian taiga Sirmilik National Park Southern Hudson Bay taiga Taimyr-Central Siberian tundra Taimyrsky Biosphere Reserve Tuktut Nogait National Park Vuntut National Park Walker Bay Field Station Wapusk National Park Yukon Interior dry forests