An angling club official is waiting for a response from the RSPCA, after reporting the find of four swans' heads in Buckinghamshire.
Steaven Cooper filed his report today, after finding four heads close to Mount Farm Lake, Milton Keynes, during the last three weeks.
A spokesman for the RSPCA said in most instances, the deaths would've been caused by animals, but this could not be established without further investigation.
A member of an angling club in Buckinghamshire has asked the RSPCA to investigate, after finding the severed heads of four swans.
Steaven Cooper, fisheries officer and secretary of the Beacon Angling Club, said he found the heads close to Mount Farm Lake in Milton Keynes.
He only found a swan's head and body in one instance and said he thought they might have been killed for food.
He said it looked as if the birds' heads had been taken off by a sharp blade and he didn't think they had been killed by an animal. He said police had told him to contact the the RSPCA. Police had no information on the matter.