Clanger and Picket Woods, Clanger Lane, Westbury, Wiltshire, BA13 4LL. Woodland Trust. A site of Special Scientific Interest, the ancient woodlands at Clanger and Picket Woods are home to a variety of plants and wildlife. Visitors can enjoy seeing stunning carpets of bluebells in springtime. Listen out for woodpeckers and look out for birds and other wildlife in this special area of woodland.