The birds were shot at Norton Mills lake in North Stainley, which could have put people's lives at risk as well.
Police say the eight geese and swans were shot and left to die.
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A young couple from Wallsend - Abbie Douglas and Sam Younganan - describe hearing gun shots in the Tunisian resort of Sousse
Temperatures on the rise from Tuesday. Some very warm and muggy nights to come
A British holidaymaker captured the scene on a Tunisian beach after a gunman opened fire at a beach resort in Sousse on Friday.