Wood Mice are far more abundant than the distribution map shows. they occur in most wood and frequently enter houses.
Yellow-necked Mice may be wrongly identified as Wood Mice; they quite often enter houses in winter.
There are records of harvest Mice throughout the county, and they may be commoner on road verges than the map suggests. They are known to occur on wildlife reserves at Upton Warren and Feckenham Wylde Moor.