The injured black labrador was spotted wobbling around on a country lane off the main road through the village of Burwell, near Louth on May 25th.
The dog was found to have a hole in the back of her head which tests later confirmed was a bullet wound. She had to be put to sleep at the scene.
Investigations have found that she was called ‘Cassie’ and was nine-years-old. She was microchipped to an address on Sackville Road in Immingham in 2012, but the person named hasn’t lived at that address for years and the mobile number on record is not in service.
RSPCA inspector Stuart Wainwright would like to hear from anyone who knows who Cassie belongs to. She had a large and distinctive lump on her back end and the fact she was lactating has led to concern over her puppies.
Anyone with information can contact the RSPCA appeal line on 0300 123 8018, and ask to leave a message for inspector Wainwright.