Bison (Bison bison) bulls sparring, Custer State Park, South Dakota, United States of America, North America

outdoors outside day daytime colour image colour color image color horizontal photography no people nobody no one travel bison bison bison animal themes animal two animals wildlife wild nature animal portrait national park custer state park south dakota usa us united states usa us united states united states of america north america american north american bull male adult sparring fighting conflict aggression head face to face confrontation competition state park