The yellow-necked mouse belongs to the medium-sized species of the genus Apodemus. The ears are relatively large, the eyes large and prominent. The snout-vent length is 88-130 mm, the tail length 90-135 mm, the length of the hind feet 22-27 mm and the ear length 15-20 mm. The animals weight 16-56 g, mostly 26-36 g. The coat is warm reddish or yellowish brown on top. The underpart is almost pure white; the demarcation to the upperpart colouring is very clear. A chest pattern is usually developed in Europe as a continuous yellowish-brown collar. The hind feet have white hairs on top.
Yellow-necked mice are largely forest-bound. Older deciduous forests dominated by beech and oak are considered optimal habitats. They also live in hedgerows and gardens with many trees. In autumn, yellow-necked mice often invade buildings. The altitudinal distribution ranges from sea level to about 2100 m in the Alps.
The text is a translation of an excerpt from Wikipedia (https://de.wikipedia.org/wiki/Gelbhalsmaus). On wikipedia the text is available under a „Creative Commons Attribution/Share Alike“ licence. Status: 23 August 2021