Donald M. Jones / Minden / Bighorn Sheep (Ovis canadensis) ram, western Canada

Sebastian Kennerknecht / American Bison (Bison bison) female in snow, Riding Mountain National Park, Manitoba, Canada

Donald M. Jones / Brown Bear (Ursus arctos) feeding on dandelions, western Canada

Donald M. Jones / Brown Bear (Ursus arctos) feeding on dandelions, western Canada

Donald M. Jones / Elk (Cervus elaphus) bulls fighting, western Canada

Donald M. Jones / Elk (Cervus elaphus) bull bugling, western Canada

Michael Quinton / Dall's Sheep (Ovis dalli) ram, lamb, and ewe, Yukon Territory, Canada

Alan Murphy/ BIA / Marsh Wren (Cistothorus palustris) calling, British Columbia, Canada

Tim Zurowski/ BIA / Western Wood-Pewee (Contopus sordidulus), British Columbia, Canada

Tim Zurowski/ BIA / Steller's Jay (Cyanocitta stelleri), British Columbia, Canada

Tim Zurowski/ BIA / Spotted Towhee (Pipilo maculatus), British Columbia, Canada

Tim Zurowski/ BIA / Pileated Woodpecker (Dryocopus pileatus), British Columbia, Canada