Another type I'm working on is inspired by the fact that I have seen main bees sticking holes in my brick and mortar from the ground up to under the eaves on the third floor. Then I saw the Bee Brick® :
https://www.greenandblue.co.uk...
They're not in my budget and I can't imagine what shipping would be from overseas.
Anyway, I decided If keep an eye out for non wood items to drill to make some test bee blocks. I found this one and the coating and heft made it seem like resin so I figured it would hold. When I got back to the shop and started drilling I quickly found out it was made of plaster.
It's an experiment so I decided to forge ahead and test it under an overhang so it won't get wet. I just deployed it yesterday so no word yet on whether bees find it acceptable. I'll be moving it slightly to one side because a window air conditioner is destined for that spot.
I'm still going to keep an eye out for different materials.
