Wood Mouse

Nick Upton / naturepl

Wood Mouse

Wood Mouse facts

Status

Native and Least Concern

Native and Listed as Least Concern on global IUCN Red List of Threatened Species.

Scientific name

Apodemus sylvaticus

Average Lifespan

1 year

Length

8 - 10cm; Tail: 7 - 9.5cm

Weight

25g

Surveying Services

Overview

Wood mice are golden-brown with pale undersides and are the most common mouse species in the UK, often spotted in gardens. They are a key prey species for tawny owls. While they favour woodland habitats, they also thrive in farmland, parks, and gardens.

Active throughout the year, wood mice may enter a state of torpor—a temporary reduction in physical activity—during very cold weather.

Sampling Advice

  • A dropping sample with sufficient biological material to be used as a reserve is required in case the extraction is unsuccessful the first time: the fresher a sample is, the more likely the test will be able to extract viable DNA.
  • Other viable sample types include fur/hair, tissue and blood.
  • Often an identified species in bat dropping analysis as well as through biological analysis.

Surveying Season

Optimal survey period =
Sub-optimal survey period =

Dropping Sample

Can survey all-year-round. Active all year, only entering torpor during the coldest of weather. Droppings can be analysed outside of active periods.

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