Bison in Heavy Snow
An American Bison (Bison bison) forages in heavy snow. Yellowstone National Park, Wyoming, 2013.
Migration
A herd of American Bison (Bison Bison) searches for forage. Yellowstone National Park, Wyoming, 2013.
Shaking Bison
A bison shakes off snow that accumulated on its back during the night. Yellowstone National Park, Wyoming, 2013.
American Bison
An American Bison (Bison bison) grazes in a field in Grand Teton National Park, Wyoming
Mormon Row Panorama
American Bison (Bison bison) graze in front of an historic Mormon Row barn, Grand Teton National Park, Wyoming
Bison and Mormon Barn
American Bison (Bison bison) graze in front of an historic Mormon Row barn, Grand Teton National Park, Wyoming
Bison on the Yellowstone
An American Bison (Bison bison) drinks from the Yellowstone River. Yellowstone National Park, Wyoming, 2011.
American Bison
American Bison in morning light, Yellowstone National Park, Wyoming.
Frosted Bison
Frost-encrusted bison on a foggy morning in the Lamar Valley, Yellowstone National Park, Wyoming, 2011.
Bison Portrait
American Bison, Yellowstone National Park, Wyoming, 2011.
Bison Dust Bath
An American Bison takes a dust bath in a wallow on the banks of the Yellowstone River, Yellowstone National Park.
Bison Abstract
American Bison (captive). Denver, Colorado, 2008.