A rare bird of prey died after it was shot next to a nature reserve.
A dog walker discovered a critically injured male Marsh Harrier at the boundary of Sculthorpe Moor on Friday, June 21.
The bird did not survive and now police are appealing for witnesses.
Nigel Middleton, manager at Sculthorpe Moor Reserve, described the incident as “horrifying”.
He said: “We hear of birds of prey being killed illegally so often.
“Having it happen on our doorstep has come as a real shock. Marsh Harriers are the reason that Sculthorpe is a reserve. Let’s bring this criminal to justice.”
Marsh Harriers had become extinct in England in the late 1800s. Now the birds are becoming a familiar sight in the fens.
Anyone who may have information is asked to call PC Jason Pegden on 101.