bridleway cloud danger England english exercise farm field footpath grass Great Britain green hedgerow hill meadow panorama passing rain sky slope South Downs storm Sussex track trail view walking abundance abundant clover diverse diversity ecology flora flowers habitat hills landscape natural nature profusion rich summer umbellifer verdant wild animal blue cattle cows domesticated fields herd hillside livestock mammal meadows peaceful resting rural tranquil trees woodland antennae beauty butterfly Chalkhill Blue delicate feeding flower haustellum insect Lepidoptera Lycaenidae proboscis rest rhopalocera scabious veins wings bank chalk hedge lane old peace route transport travel verge walk tree border clouds margin plants white yellow crop destination Downs fence golden grain path wheat