In 2009 the Stewkley Brownies placed the drilled logs in the Reserve, in May 2010 the first signs of occupation appeared.

A solitary bee has laid an egg in a hole, added food for the emerging grub, and then plastered over the end of the hole.

Presumably when the new bee emerges it will remove the plastering to get out.

In May 2012 Red Mason Bees were observed to be using these logs, they are they are the ones that plaster over the entrance with mud. See the entry for Red Mason Bees

The page has been left as there may be other types of bee using these logs, varieties that block the hole with part of a leaf.