The RSPCA is bracing itself for a surge in numbers of air gun attacks on animals. This year, the charity has received more than 300 calls about attacks on dogs, birds, cats, fish and horses. The majority come from members of the public during school holidays, with attacks rising during lighter summer evenings.

Steve Cheetham, the RSPCA's chief veterinary officer, said: "It is very distressing to think that people take pleasure in causing such horrific injuries to defenceless animals. These are deliberate acts of cruelty and I would appeal to people's consciences not to commit such an atrocious offence."

In February, a male swan was killed with a single shot and his mate shot in the head on a Wolverhampton canal. Last year, the RSPCA dealt with 759 animals affected by the improper use of airguns.