Wood mice are very common in our nature reserve but rarely seen. Here are some of their personal details.
Names: Apodemus sylvaticus, European wood mouse, long-tailed field mouse, field mouse, common field mouse.
Appearance: russet brown fur, notably darker towards the spine, with white or grey underside; very protruding eyes, large ears, long tail.
Size: 81-103mm; tail 71-95mm.
Weight: 13-27g; about the same as a fun-size Mars Bar.
Life Span: few adults survive from one summer to the next.
Diet: omnivorous: seeds, fruit, nuts, and invertebrates such as earthworms, caterpillars, centipedes.
Southwick Country Park Nature Reserve 
Sometimes when tidying the garden in the spring we find a little pile of cherry stones from the tree above with holes gnawed in them. Would these be from wood mice?
Yes, that is exactly what wood mice do. They may well have a place among the roots of your cherry tree, or in a hole in its trunk, where they store the stones for the winter. I expect most gardens in Southwick will have a resident wood mouse.