A dog with a nose for rodents is being used to help monitor colonies of water voles in a major project in Herts and Essex.Stig, a nine-year-old pure-bred English springer spaniel, is the first and only sniffer dog in the world devoted to the animal made famous by Ratty in Kenneth Grahame's The Wind In The Willows.His mission is to find the mammals' scent from its poo to help monitor their population. Stig's surveys of the riverbank come after 188 of the previously prevalent animals were...
