A man from Derbyshire is appealing for the safe return of his rare seaweed-eating sheep.
This year alone, four of Belper resident Peter Montgomery's 11 North Ronaldsay sheep have disappeared or been killed.
Mr Montgomery is concerned that the loss of the four ewes could push the endangered breed closer to extinction.
As the sheep are not worth much Mr Montgomery cannot understand why they may have been taken.
The sheep are on the Rare Breed Survival Trust's vulnerable list and need to be reared by people who know how to look after this type of animal.
North Ronaldsays are adapted to a diet of seaweed so if they are moved to a different environment they can be susceptible to copper poisoning.