A flock of birds settling on an American Bison (Bison bison), in search of vermin in winter coat

american an animal animals artiodactyla aves bird birds bison bison bisons bovid bovidae bovids bovinae bovine bovines bovini buffalo buffaloes buffalos coat day daylight daytime during even even toed exterior exteriors fauna flock in insect insecta insects kingdom mammal mammalia mammalian mammalians mammals nature nobody of on outdoor photo photos ruminant ruminantia ruminants search settling shot shots tetrapod the toed toed ungulate ungulates vermin vertebrata vertebrate vertebrates wild wildlife winter world