The former North Shropshire WWII airfield is being returned to nature
A pond has been created at Prees Heath Common nature reserve near Whitchurch.
It is part of joint plans by the charity Butterfly Conservation and the Environment Agency to restore the former World War II airfield back to a natural wetland.
It is hoped the new pond will attract wading birds, amphibians, insects, wetland plants and water voles.
Prees Heath Common is the last sanctuary for the silver-studded blue butterfly in the Midlands.
Butterfly Conservation bought part of Prees Heath Common, with help from Shropshire and Cheshire Wildlife Trusts, in 2006.
Since then they've been restoring it back to heathland and wetland. The pond was completed in December 2009.
Stephen Lewis, Prees Heath Common officer with Butterfly Conservation said: "The work being carried out is not just for the benefit of butterflies but for all wildlife.
"We won't be introducing wildlife to the pond, we'll let the site evolve naturally and see what chooses to take refuge there.
"We could get skylarks, yellow hammers and even nightjars returning."
It is hoped that water voles, which are quite common in the Whitchurch area, could also find their way to the pond.
Simon Cuming, Biodiversity Officer with the Environment Agency says: "The creation of a pond will increase the variety of habitats and wildlife on the heath.
"It should provide a home for dragonflies, amphibians and wading birds, such as lapwing and snipe, which might not otherwise be found on the reserve," he added.