Bee Hotel

We have a lot of holes in our old house walls and there are plenty of bees around using these holes. Earlier in the year there were Hairy Footed Flower Bees and their predators the Common Mourning Bee and later I expect to see Mason Bees. I decided to add a small Bee Hotel to the wall to see if it got used and after a month or so there have been 12 of the holes used with continuing interest from various bees. I'll have to get some photos of the bees and maybe be able to identify the species.