Diet Overlap

Acanthis flammea (Common Redpoll) Rangifer tarandus (caribou)

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 Alberta Mountain forests Alberta-British Columbia foothills forests Aleutian Islands Biosphere Reserve Arctic coastal tundra Arctic foothills tundra Auyuittuq National Park Baffin coastal tundra Baikalskiy Biosphere Reserve Banff National Park Barguzinskiy Biosphere Reserve Beringia lowland tundra Beringia upland tundra Bonanza Creek LTER Site Brooks-British Range tundra Canadian Aspen forests and parklands Cascade Mountains leeward forests Central British Columbia Mountain forests Central Canadian Shield forests Cook Inlet taiga Davis Highlands tundra Denali Biosphere Reserve Eastern Canadian forests Eastern Canadian Shield taiga Fraser Plateau and Basin complex Gates of the Arctic National Park Glacier National Park Great Lakes Basin desert steppe Gros Morne National Park Gulf of St. Lawrence lowland forests Gwaii Haanas National Park Reserve High Arctic tundra Interior Alaska-Yukon lowland taiga Interior Yukon-Alaska alpine tundra Ivvavik National Park Jasper National Park Kazakh forest steppe Khangai Mountains conifer forests Kluane National Park and Reserve Kronotskiy Biosphere Reserve Lake Superior Provincial Park Lake Torne Area Laplandskiy Biosphere Reserve Low Arctic tundra Mid-Continental Canadian forests Midwestern Canadian Shield forests Mount Revelstoke National Park 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 Northwest Russian-Novaya Zemlya tundra Northwest Territories taiga Ogilvie-MacKenzie alpine tundra Okanagan dry forests Palouse grasslands Pechoro-Ilychskiy Biosphere Reserve Polar Bear Provincial Park Prince Albert National Park Pukaskwa National Park Queen Maud Gulf Bird Sanctuary Reserve de la Biosphere de Charlevoix Sayan Alpine meadows and tundra Sayan Intermontane steppe Sayan montane conifer forests Sayano-Shushenskiy Biosphere Reserve Scandinavian and Russian taiga Selenge-Orkhon forest steppe Sirmilik National Park South Avalon-Burin oceanic barrens Southern Hudson Bay taiga Taimyr-Central Siberian tundra Taimyrsky Biosphere Reserve Torngat Mountain tundra Tsentral'no-Sibirskiy Biosphere Reserve Tuktut Nogait National Park Ubsunurskaya Kotlovina (Ubsunur Depression) Vuntut National Park Walker Bay Field Station Wapusk National Park Western Siberian hemiboreal forests Wood Buffalo National Park Wrangell-St. Elias National Park and Preserve Yoho National Park Yukon Interior dry forests