This is Eric, a 30-year-old Shetland pony, stolen from Dorney Animal Sanctuary in Lake End Road, Taplow.
Sanctuary staff noticed Eric missing when they went to check on him at 7am this morning and are desperate for him to be returned.
They are increasingly worried as he has a broken shoulder and needs regular medication. Eric's stable friend is also very distraught as they have been together for a long time.
Staff and police believe that Eric was stolen between 1am and 7am.
Eric is approx 3ft, chestnut and white in colour and has a freeze marking on his back.
Anyone with information should call PCSO Kiffin on 101.