European bison bonasus bull walking alone in a foggy steppe,Czechia

bison bonasus wisent european zubr czechia animal alone bull walking foggy nature natural reserve wild wildlife mammal grassland horned cattle bovine livestock endangered habitat calf cow herd grazing bovinae bovidae gregarious herbivore ungulate pasture grass documentary bushes steppe forest field male fog misty hazy lush marshland lonely thicket ruminant