The reward for information leading to the arrest and conviction of a Somerset Swan Killer is now over twenty-six thousand pounds - thanks in part to author Sir Terry Pratchett.

The Discworld writer has contributed ten thousand pounds to the sum, as the Secret World wildlife charity appeal for help in finding those responsible.

Eight swans were shot in the head with an air rifle in East Huntspill on February 21st, and ten more were found dead in Wedmore on Tuesday.

Thirty-one have been killed in total in recent months, and the RSPCA are also investigating.