bog danger England english grasses Great Britain heath heathland landscape marsh nature sign Surrey trees warning autumn brown conker fall fallen fruit Hippocastaneum horse chestnut leaf leaves nut path pavement tree withered bridge calm flow peaceful placid river Salix tranquil water willow bushes flowers garden green oak pink Quercus shrubs spring woodland Merced river national park pines riverbanks rocks stones summer usa valley Yosemite blossom bush crataegus hawthorn natural shrub Sussex white barn blue buildings copyspace farm farmhouse fields hedge hedgerow house sky stable stone bank dordogne ecology forest France french shadow sunlight sunny track cloud crop field golden yellow angel branches christmas cute decoration face Nativity ornament paper portrait puppet small wood xmas xmasphoto2012