122178 Wood Mouse Apodemus sylvaticus Length 15-22cm. Adult is a classic mouse-shape with pointed head, compact body and long tail. Coat is mainly yellowish brown above, with dark vertebral band along dorsal surface of head and body. Yellowish flank colour grades to whitish on underparts. Underground nest and tunnel network serve as a refuge. After dark, forages for seeds, nuts and fruits above ground; climbs well. Utters frantic squeals in distress. Common in woodland but also found in most other terrestrial habitats including scrub and gardens.