Herb Field Mouse

The herb field mouse has a head-and-body length of 85–102 millimetres, a tail of 64–97 millimetres and a weight of 12–26 grams, with hind feet of 17–22 millimetres and ears of 14–16 millimetres. The upper fur of western populations is described as grey-brown without a yellow component, while Asian populations can include animals with lighter sandy or red-brown upperparts. In all populations there is a clear boundary to the white underside, which has a light grey sheen, and the tail is brown above and whitish below. (German Wikipedia, general species account)

This rodent of the Old World mice occurs in Eurasia. For a long time it was treated as a subspecies of the wood mouse, but molecular and morphological studies in the 1990s and early 2000s led current taxonomic works to recognise the smaller form as a species. The name Apodemus microps, once used for western populations, is now a junior synonym. (German Wikipedia, general species account)