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Dormouse Survey

The Wrexham Biodiversity Group have put up 100 dormice tubes over the summer. Distributing the Dormice tubes in Wrexham's woodlands as part of the North Wales Wildlife Trust's Rare Woodland Mammal Survey, funded by the Countryside Council for Wales.

The Dormice tubes are used by Dormice as nesting sites where tree holes and other alternative nesting sites are generally absent. They have been trailed in several areas around Britain and have proved very successful as a survey method.

Wrexham's Biodiversity Officer will be responsible for surveying the tubes biannually.

Dormice have become rare as a result of the continued loss of ancient woodland, the fragmentation of large woodlands and the loss of connecting features such as hedgerows. Ancient woodland refers to sites where there is believed to have been continuity of woodland cover since at least 1600AD.

Dormice feed on flowers, fruit, nuts and insects. They need to live somewhere where these are available. Hazel, honeysuckle, bramble and oak are important food sources.

Dormice are strictly nocturnal, spending all day asleep in their nests. They spend most of the night climbing among tree branches in search of food using their large eyes and whiskers to guide them, rarely coming to the ground.

Dormice are a golden colour, with a furry tail and large dark eyes. Adults weigh about the same as two £1 coins in the summer, but will double in size to prepare for hibernation around November; they are not active again until April or May, sleeping at least half of the year.

A Dormouse nest is built from shredded honeysuckle bark intricately woven into a ball, and surrounded by a layer of leaves.

Dormice are strictly protected by law and may not be intentionally killed, injured or disturbed in their nests, collected, trapped or sold except under licence.