Stock photography, photos: Buffalo herd Stock photos of Buffalo herd in Yellowstone N.P. Photograph: © Dick J.C. Klees Click for a larger image and more information Keywords associated with this stock photo: Buffalo, bison, bison bison, ungulate, cloven-hoofed, mammal, artiodactyla, snow, winter, Yellowstone N.P., National Park, American, USA, U.S.A., survival, herd, foraging, grazing, scenery, landscape, Valley, Lamar valley,