Tweet Take 5 : Corncrake

The repetitive crex crex call of the corncrake was once a familiar sound across much of the British Isles. Today as a result of changes in farmland management, these secretive summer visitors are found only in a few places in the west of Britain, though attempts are being made to reintroduce them to parts of Cambridgeshire. As we'll hear from wildlife cameraman Mark Smith, wildlife presenter Steve Backshall and musician Joe Acheson.

Producer : Andrew Dawes for BBC Audio in Bristol