Three bison (Bison bison) showing aggression in a field with snow, Denver, Colorado, United States of America

horizontal field horizon outdoors day daytime animal aggression aggressive attack defense competition action fight color colour strength close up motion active threat snowy fields bison buffalo fighting threatening competing side view horizon over land full length rear view bison bison three animals bovidae animals bovinae fights wild wildlife snow conflict outside nobody rural color image american bison close up animals in the wild focus on foreground colour image no one no people bovina closeup three bison