Adult european Bison close up covered of snow

european bison bison bonasus bison buffalo wisent bull artiodactyla ruminant wildlife grazing horns horn rewilding bovidae animal fur bialowieza national park mammal snow bialowieza cold wild head closeup winter endangered hervivore zubr protected extinct reintroduction national park brown bonasus male nature largest poland biaowieza storm danger close grass large polish symbol european outdoor park forest