Diet Overlap

Loxia leucoptera (White-winged Crossbill) Erethizon dorsatus (common porcupine)

Common Diet

Abies arctica (Canadian spruce)

Common Habitat

Acadia National Park Alaska Peninsula montane taiga Alaska-St. Elias Range tundra Alberta Mountain forests Alberta-British Columbia foothills forests Algonquin Provincial Park Allegheny Highlands forests Appalachian mixed mesophytic forests Appalachian-Blue Ridge forests Arctic National Wildlife Refuge Banff National Park Blue Mountains forests Bonanza Creek LTER Site British Columbia mainland coastal forests Bruce Peninsula National Park Canadian Aspen forests and parklands Cascade Mountains leeward forests Cedar Creek LTER Site Central and Southern Cascades forests Central and Southern mixed grasslands Central British Columbia Mountain forests Central Canadian Shield forests Central Pacific coastal forests Central Plains Biosphere Reserve Champlain-Adirondack Biosphere Reserve Chihuahuan desert Chiricahua National Monument Colorado Plateau shrublands Colorado Rockies forests Cook Inlet taiga Copper Plateau taiga Denali Biosphere Reserve Eastern Canadian forests Eastern Canadian Shield taiga Eastern Cascades forests Eastern forest-boreal transition Eastern Great Lakes lowland forests Elk Island National Park Fathom Five National Marine Park Forillon National Park Fraser Plateau and Basin complex Fundy National Park Glacier National Park Great Basin shrub steppe Gulf of St. Lawrence lowland forests Hubbard Brook Biosphere Reserve Interior Alaska-Yukon lowland taiga Interior Yukon-Alaska alpine tundra Jasper National Park Kejimkujik National Park Kluane National Park and Reserve Kootenay National Park Kouchibouguac National Park La Mauricie National Park Lake Chelan National Recreation Area Lake Superior Provincial Park Mid-Continental Canadian forests Midwestern Canadian Shield forests Mojave desert Montana Valley and Foothill grasslands Mount Rainier National Park Mount Revelstoke National Park Muskwa-Slave Lake forests Nahanni National Park Reserve Nebraska Sand Hills mixed grasslands New England-Acadian forests Niagara Escarpment Biosphere Reserve North America North Central Rockies forests Northeastern coastal forests Northern Canadian Shield taiga Northern Cordillera forests Northern mixed grasslands Northern Pacific coastal forests Northern short grasslands Northern tall grasslands Northern transitional alpine forests Northwest Territories taiga Ogilvie-MacKenzie alpine tundra Okanagan dry forests Olympic Biosphere Reserve Pacific Coastal Mountain icefields and tundra Palouse grasslands Polar Bear Provincial Park Prince Albert National Park Puget lowland forests Pukaskwa National Park Reserve de la Biosphere de Charlevoix Riding Mountain Biosphere Reserve Rocky Mountain Biosphere Reserve Saint Lawrence Islands National Park Shortgrass Steppe LTER Site Sleeping Bear Dunes National Lakeshore Snake-Columbia shrub steppe South Central Rockies forests Southern Great Lakes forests Southern Hudson Bay taiga Southwest Nova Biosphere Reserve Upper Midwest forest-savanna transition Voyageurs National Park Vuntut National Park Wapusk National Park Wasatch and Uinta montane forests Waterton Biosphere Reserve Western Great Lakes forests Western short grasslands Willamette Valley forests Wood Buffalo National Park Woodland Caribou Provincial Wilderness Park Wrangell-St. Elias National Park and Preserve Wyoming Basin shrub steppe Yellowstone Biosphere Reserve Yoho National Park Yukon Interior dry forests