The sheep involved has been treated by a vet. At the Wiltshire Wildlife Trust’s Devenish reserve, the sheep are regularly found spooked and distressed after contact from unmanaged dogs. They say: Visitors to nature reserve sites are asked to always observe the clearly visible signs, telling them that dogs must be kept on leads and kept out of certain sensitive areas entirely. The Trust has had wildlife and livestock killed and injured by dogs previously, and the stress to them alone can cause considerable harm. The Trust is urging all dog owners who visit one of their sites to please keep all dogs on the lead, to help protect the health and happiness of the wildlife and animals who live there.