Thank you Wes, if you make one just make sure you use untreated wood. Thanks for the tip!

Neat idea! Thank you for sharing this. We'll have to give it a try... our woodpeckers do not come here as much in the summer, so they might be safe. Oh, wait... would they use this for hibernation or just in the warm weather? I know we have the solitary bees already, but it would be nice to have more!

What are the little slits I see between the holes and on the side?

Kim, they are used for summer and hibernation. I got rid of those with the slits as I found out it was treated lumber. I bought a couple of different types to replace them. They can also be made by stacking untreated boards together to form a block that would work well too.

Thank you. I just wanted to make sure the slits were not something we needed to put in. When we make nesting boxes for the birds, they recommend roughing up the wood under the hole on the inside to make it easier for the birds to cling.

This really does sound like an interesting project and we have plenty of scraps that can work. We have a lot of fun observing the birds at their houses during breeding season and have learned so much about their behaviour. Sure we see insects on the flowers, but it would be so neat to see their lives away from there. We have seen digger wasps build their "nests" and that was fun.

Your welcome Kim! Don't forget to post photos when the bee house is finished.