Giant sandcastle built to bring sand martins home to roost in Surrey

Conservationists build 400-tonne structure to tempt migrating birds back to nature reserve after 25 years

A giant sandcastle" has been constructed to encourage sand martins to nest at a nature reserve for the first time in 25 years, Surrey Wildlife Trust has said.

The 400-tonne sand installation at Spynes Mere, near Merstham, Surrey, was built by professional sand sculptors who used a giant bucket mould" made from wooden boards, as well as the help of diggers and dumper trucks.