brown Calluna cloud dead dried England english forest Great Britain heather heathland hill landscape ling natural nature russet sky spring stems Sussex trees view woodland beauty countryside crop farm field quality rural South Downs wood buttercups exercise flowers green hillside meadow track trail walk access closed entrance fence gate grass peaceful Surrey Hills tranquil wooden bank destination direction lane road transport travel tree verge animals domesticated graze lambs mammals pastoral peace sheep valley early light slope soft bridleway fresh path Trek UP animal blue day eating feeding fine flock grazing livestock mammal summer meadowmfield panorama