agricultural animal appearance appearances bare bared black black-and-white blackfaced-sheep domestic domesticated ewe farm farm-animal farming features grass mammal quiet shadow shearing sheep shorn texture wool woolly nature wildlife zoo Chordata England flock landscape livestock meadow ovis pasture peace peaceful rural South Downs summer Sussex tranquil field fleece head leg mammalia Great Britain green north spring uk animals fur german german heath goat heath heidschnucke horn horns horny pet white breed english fence graze mammals natural trees variety winter hill hillside