mammals - wild nature european bison bison bonasus wisent herd standing on the field north eastern part of poland

animal animals autumn bialowieza big bison bonasus brown buffalo bull cattle cold eastern endangered europe european fauna field forest grass grazing head herd horn horned knyszynska large mammal mammals meadow national nature north outdoor outdoors park part pasture photography pimeval poland portrait power primeval rare snow snowy standing white wild wildlife winter wisent wood woodland