Three sheep have been stolen from a field, which was secured by an electric fence, on Westfield Road, Leasingham.
The sheep were taken during the night between Thursday 11 and Friday 12 October, and Lincolnshire Police are now appealing for any information that will help the sheep be found.
One of the sheep is a pet called George who the owners miss terribly, another one is a ram called Toby and the third is unnamed.
All of the sheep were tagged and without the paperwork the movement of the animals should cause suspicion.
The flock number for George is UK22039 and for Toby, who is a Kerry Hill pedigree, is UK 150054-0010. It may be the tags will have been removed.