Bison drinking water from fast flowing river

bison drinking water american buffalo buffalo grazing artiodactyla american bison herbivorous bovidae wildlife observation artiodactyl ungulates national wildlife refuge animal behaviour conservation area rump in the air herbivore mammal wild animal resting grassland mammalia large beast ecology verdant river bank wilderness bull ruminants brown fur tail montana nature drinking wild taking a break bovine flowing river travel solitary hunched shoulders untamed drink landscape solitude horns greenery outdoors park intermountain bunchgrass prairie shaggy fur coat no people