At least three swans have been killed after having their heads chopped off at Mount Farm Lake.
The severed heads of three birds were found close to the water by members of the Beacon Angling Club.
Steaven Cooper, the club’s fisheries officer and secretary, discovered the first head last week.
He said: “I’ve been a member of the club for 10 years, but have never known anything like this.
“I was out one afternoon and the head was just lying there by the waterside opposite The Inn On The Lake pub. Anyone could have come across it – a runner, someone walking their dogs, a small child. It was horrible.
“We have found three heads, and one of them had the body close by it. It doesn’t look like it was done by an animal, it was a sharp blade that took the heads off.”
Contrary to popular belief, the Queen does not own all swans in the UK. However, killing one can result in a six-month jail sentence and/or a fine of up to £5,000.
Mr Cooper is urging anyone with information to contact the police.
He added: “We keep an eye on what is going on at the lake. Our baliffs monitor the lake daily and have been told about the issue.
“As a club we take responsibiltiy for all wildlife here –the swans, the geese, the foxes and the owl.
“In the past we have been in the lake saving cygnets which have got caught, or other injured birds.
“The animals were here before we were, and it’s up to us to share the area. Whoever killed these swans is just sick.”
An RSPCA spokesman said: “We haven’t received any calls about the swans and haven’t seen the bodies.
“However, in the majority of similar cases, predation by other animals is the cause but if anyone does have information that this was done deliberately they should contact the RSPCA on 0300 1234 999.”