deciduous England english exercise forest Great Britain natural nature path spring Sussex track trail trees trunks walk wood woodland branches flood landscape park parkland pool reflections Salix Tidworth water willows wiltshire winter avenue birch birdfeed birdfood fur nuts opportunistic opportunity pine red squirrel steal tail Thief trunk branch leaf leaves shade shadow sunlight tree autumn beech Betula Fagus leaf litter Surrey background texture white bridleway color colour fall footpath oak Quercus creepy eerie Fagus sylvatica high holly ilex standard tall understory countryside rural ancient bark boulders gnarled grotesque Israel old Olea olive pitted rocks Roots spooky strange Tel Dan conifers dark evergreens pines uncanny