Rats and Mice on the Move: Your Rodent-Proofing Checklist for Isle of Wight Homes. As nights cool, field food sources dwindle and outdoor shelter becomes less reliable, rats and mice on the Isle of Wight begin a well-established migration from hedgerows, farmland edges, drainage runs and garden voids into the warm, food-rich environments of our homes, garages, sheds, outbuildings, farms