This morning I woke to the news that, thanks to a National Trust project, beavers have built a dam on Exmoor for the first time in 400 years. The timing is perfect as tonight is a full moon, which is sometimes known as a Beaver Moon. This is because First Nations in America knew that beavers built their dams at this time of the year.

Image from Nature Month-by-Month, illustrated by Elly Jahnz

Beavers have had a hard time in this country – they were hunted to extinction in the 16th century because people used to take their fur to make hats and other clothing. Also an oil called ‘castoreum’ which beavers secrete from glands in their body was believed to be good for humans, so it was put in medicines and perfumes.

The beavers on Exmoor have been reintroduced in a controlled way, under a special licence, to help prevent flooding and restore streams that had dried up.

Image from Nature Month-by-Month, illustrated by Elly Jahnz

This new beaver dam on Exmoor is very special as it is the first one to be seen in the UK for almost half a millennium. As well as being a superb natural way of managing the flow of the river, the dam creates a wetland for other species. This means that creatures such as my favourite bird, the kingfisher, are likely to be seen there and it will become a breeding ground for lots of other wildlife.

So three cheers for the beavers on this, the night of the Beaver Moon!