ENDANGERED water voles are thriving at Netheridge Nature Reserve, just five years after being introduced to the site near Hempsted.
Falling numbers of the semi-aquatic rodent prompted environmentalists to release small numbers into the reserve in the hope they would multiply.
The wildlife haven, managed by Gloucester City Council on behalf of Severn Trent Water has proved the perfect home.
Councillor Kathy Williams, cabinet member for the environment, said: "We have a responsibility to look after our open spaces and protect our environment. It is great these superb little creatures are making a home for themselves."
