I've always been intrigued by the little game holes in Cotswold stone walls. There are many in the stone walls around the village and their primary purpose was to allow grey partridge to travel from field to field. Being a ground bird the partridge tend to walk in flocks, or coveys, as they feed and are well camouflaged in the grass, stubble or crop. If they were forced to jump over the walls they would become easy prey. The hole in the wall therefore allowed them safe passage from field to field.
The grey partridge was once very abundant, but numbers declined to critical levels post WWII due to the use of pesticides, herbicides and the removal of hedgerows. However, they are making a small comeback and some farmers are now encouraging them to thrive once more.