Steve Downer / Wood mouse (Apodemus sylvaticus) grooming and looking around in burrow interior, UK, March. Captive.

Steve Downer / Wood mouse (Apodemus sylvaticus) at burrow entance, UK, March. Captive.

Steve Downer / Wood mouse (Apodemus sylvaticus) at burrow entance, UK, March. Captive.

Steve Downer / Wood mouse (Apodemus sylvaticus) grooming, UK, March. Captive.

Juergen & Christine Sohns / House Mouse (Mus musculus) pair smelling each other, Ellerstadt, Rhineland-Palatinate, Germany

Juergen & Christine Sohns / House Mouse (Mus musculus) trio, Ellerstadt, Rhineland-Palatinate, Germany

Colin Varndell / Wood mouse (Apodemus sylvaticus) climbing on hazel branch. Dorset, UK, September.

Dave Bevan / Two Wood mice (Apodemus sylvaticus) feeding from a bird feeder, filmed at night using an infra red camera, Carmarthenshire, Wales, UK, September.

Dave Bevan / Wood mouse (Apodemus sylvaticus) feeding from a bird feeder, filmed at night using an infra red camera, Carmarthenshire, Wales, UK, September.

Stephen Dalton / Wood mouse (Apodemus sylvaticus) portrait, Rookery Wood, Sussex, England, UK, February.

Stephen Dalton / Wood mouse (Apodemus sylvaticus) portrait, Rookery Wood, Sussex, England, UK. February.

Dave Bevan / Two Wood mice (Apodemus sylvaticus) feeding on a bird table, Carmarthenshire, Wales, UK. July.