11/10/2026
Could you help us find the first sign of dormice in the Heavens?
Dormice are declining in the UK. Although they are found in parts of the Stroud Valleys, they have yet to be recorded in the Heavens.
Dormice are rarely seen as they hibernate during the winter and in summer are only active at night.
But during the autumn they feed up on nuts and berries to build up fat stores for winter hibernation. And dormice open hazelnuts in a very specific way to get at the kernel within.
So by checking hazelnuts dropped under hazel bushes, it is possible to tell if dormice are present. Dormice leave a smooth inner rim with toothmarks at an angle to the hole on the surface, different from the marks left by wood mice and bank voles.
If you think you’ve spotted signs of these cute rodents, please record on the iRecord app https://irecord.org.uk/ with location and a photo. Or contact us at us [email protected] with the location.