Bluetit gathering nesting material

Dormouse (or rather bluetit) box check, May 2015

Saturday morning was glorious, so I was feeling pretty optimistic as I set out for the May dormouse box check. We hadn’t seen any dormice in April at my site, but a month can make a big difference to small mammals. And Dr C was joining me (along with four other volunteers) for the first time.

The woods looked like a bride, dressed for a wedding in the freshest foliage and bedecked with flowers. Spring was everywhere, and the contents of the boxes reflected that.

Sadly, we had no dormice (nor any other mammals). But many, many birds nests, with lots of chicks. About a third of the boxes contained bird nests, which limits the nesting sites for dormice. But we can’t (and wouldn’t want to) disturb the birds.

Anyway, most of the nests were bluetits, who only have one brood a year. By next month most of the chicks will have fledged,  the nests will be empty, and dormice can move in. While dormice are more fastidious housekeepers than other mice, they’re not above building their nest on top of a used bird nest. And, when the bird nesting season is well and truly over, we will clean the old bird nests from the boxes, to give the dormice a more hygienic option.

So, I was a little disappointed we didn’t get any dormice. Especially when other site leaders posted photos on Facebook of all the lovely dormice they had found. But I refuse to give up hope, as we know there are dormice in the wood, and they did use the boxes late last year.

Still, I think I may have to change what I call the box checks – not dormousing, but bluetiting.


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