Danny Green / Hazel Dormouse (Muscardinus avellanarius) hibernating amongst leaves and acorns. Captive. Leicestershire, UK, October.

Kerstin Hinze / Hazel dormouse (Muscardinus avellanarius) climbing on rose hips, Schleswig-Holstein, Germany,

Terry Whittaker / 2020VISION / Hazel dormouse (Muscardinus avellanarius), Chestnut coppice and Bluebells (Hyacinthoides non-scripta). Careful chestnut and hazel coppicing benefits dormice. Kent, UK, April 2011

Terry Whittaker / 2020VISION / Hazel dormouse (Muscardinus avellanarius) running up branch in coppiced hazel tree, Kent, UK. Photographed in wild under licence with remote camera (camera trap), October

Terry Whittaker / 2020VISION / Hazel dormouse (Muscardinus avellanarius) in coppiced hazel tree, Kent, UK. Photographed in wild under licence with remote camera (camera trap), September. 2020VISION Book Plate.

Terry Whittaker / 2020VISION / Hazel dormouse (Muscardinus avellanarius), Kent, UK. Members of Kent Mammal Group conduct monthly dormouse survey, torpid dormouse hibernating in nest box in coppiced woodland, November 2011. Did you...

Colin Varndell / Hazel Dormouse (Muscardinus avellanarius) hibernating, Dorset, UK

George McCarthy / Hibernating dormouse {Muscardinus avellanarius} curled up asleep in nest, Sussex, UK

Artur Tabor / Forest Dormouse on hazel tree branch, Poland

Colin Varndell / Dormouse (Muscardinus avellanarius) juvenile, Dorset, UK July.

Colin Varndell / Dormouse (Muscardinus avellanarius) feeding, Dorset, UK July.

Colin Varndell / Dormouse (Muscardinus avellanarius) climbing on wild cherry branch. Dorset, UK July.