Wood Mouse

Apodemus sylvaticus

Common & widespread in Britain & Ireland, mainly nocturnal.

Common in the rest of Europe, except Northern Scandinavia, North West Africa & South West Asia. 

 Also known as 'the Field Mouse.'

 Native to Europe and northwestern Africa.

It is closely related to the Yellow-necked Mouse (A. flavicollis) but differs in that it has no band of yellow fur around the neck, has slightly smaller ears, and is usually slightly smaller overall: