Yes mason bees. The first two houses filled up so fast and my cukes and zucchini have not even put out blossoms yet.
They are no work at all.
I’m going to talk to Beau about those bee houses. If I can buy the tubes, I’m sure we can find plans on-line for the house part. He always has scrap wood around to use...and every screw, nail and bolt known to Mankind!
And an extra Porta-Potty. And the door to a submarine! And I haven’t even looked in the barn in a while, LOL! :)