©Danny Green
Hazel dormouse
Scientific name: Muscardinus avellanarius
The shy hazel dormouse is very hard to spot - not only is it nocturnal, but it is mostly confined to southern England, living at low densities, high-up in the tree canopy. It also hibernates for much of the year.
Species information
Category
Statistics
Length: 6-9cmTail: 5.7-6.8cm
Weight: 15-40g
Average lifespan: 5 years
Conservation status
Protected in the UK under the Wildlife and Countryside Act, 1981. Priority Species under the UK Post-2010 Biodiversity Framework. Listed as a European Protected Species under Annex IV of the European Habitats Directive.
When to see
April to OctoberAbout
The hazel dormouse (or just 'dormouse') is an agile climber and mainly nocturnal, so is rarely seen. It lives in deciduous woodland, hedgerows and dense scrub, and spends most of the spring and summer up in the branches, rarely coming down to the ground. It eats buds, hazelnuts, berries and insects. Hazel dormice build nests out of grasses, stripped honeysuckle bark and fresh hazel leaves, in which the female will give birth to up to seven young. They hibernate during the winter months, either on the ground (under logs, leaves, in grass tussocks and at the base of trees) or just beneath the ground where the temperature is more constant.How to identify
The hazel dormouse has gingery-brown fur, large black eyes and a long, fluffy tail; it is much smaller than a squirrel.In our area
Dormice are thriving in Suffolk Wildlife Trust reserves, including Bradfield Woods and Arger Fen.
To ensure a sustainable population and re-colonisation of nearby woods and hedges it is essential that we restore and strengthen links between woodland SSSIs.
In order to help dormice in Suffolk, it's important to know where they are. By recording any sightings or evidence of these legally protected mammals, from nests to nutshells, you can help keep Suffolk a dormouse stronghold.