European bison bonasus herd from behind,walking in long grass,Czechia

bison bonasus wisent european zubr czechia animal behind walking nature natural reserve wild wildlife mammal tail grassland horned cattle bovine endangered steppe habitat herd cow calf bovinae rear bull bovidae gregarious poland herbivore quadrupedal ruminant ungulate pasture conservation grass field plain documentary flank grazing horns fur hooves trotting away