A buzzard may have starved to death after its beak was bound, Derbyshire Police have said.
The dead bird was found on land near the village of Turnditch.
Derbyshire Police said they are investigating after the bird was found with its beak apparently bound.
The bird appeared to have had a hole forced through its beak which had then been bound closed with twine.
Wildlife crime officers from the force are working with the RSPB to investigate the circumstances surrounding the bird's death.