St Kilda Field Mouse

St Kilda Field Mouse
Scientific classification
Kingdom: Animalia
Phylum: Chordata
Class: Mammalia
Order: Rodentia
Superfamily: Muroidea
Family: Muridae
Subfamily: Murinae
Genus: Apodemus
Species: A. sylvaticus
Subspecies: A. s. hirtensis
Trinomial name
Apodemus sylvaticus hirtensis
(Barrett-Hamilton, 1899)

The St Kilda Field Mouse (Apodemus sylvaticus hirtensis) is a subspecies of wood mouse endemic to the Scottish isles of St Kilda. It is generally twice as heavy as mainland field mice and has longer hair and a longer tail. It is mostly grey in colour and, though hard to find, very common.

It is not to be confused with the St Kilda House Mouse, which is now extinct.