Found nibbled hazelnuts in the garden. Tiny hole, very neatly gnawed with a smooth inner ring. Oh, yes, I looked it up - a dormouse - now a protected species. Watch out for their nests and hibernation this Autumn and keep them protected. If you have had the horror of finding your cat with one (slightly gingery, slightly furry, flattened tail, long, long whiskers, white chin and sometimes tummy, too) rescue it and if necessary ring a wildlife hospital. They love to make nest from honeysuckle bark.