Ripon police say that a group of Canada and Greylag geese, and a Mute Swan, were shot through the wings and legs - and left to die.
They were discovered last month by an ecological survey team at a nature reserve.
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Police are trying to trace a key witness in the investigation of an historic rape, which had originally been classed as 'no crime'.
The longest general election campaign in modern history begins with the dissolution of Parliament today.
The constituency of Washington and Sunderland West includes the UK's largest car plant, which was opened by Nissan in 1984.