My dad has been making these bird houses out of scrap wood he has laying around. They are super simple in their construction but well thought out. He put an eye hook on the top if you wanted to hang it from a tree. Unfortunately I don’t have a tree to hang the bird house from (and my dad said that hanging the houses can be unstable for the birds) so my dad drilled a hole in the back of the house so I could nail it up to a fence.
My dad also made the front panel able to swing down so if you do have birds move in and then abandon the nest you can always clean out the nest. Also this allows an access point so you can nail it up to a fence. The hole is 1 and 1/4 inch diameter so it is meant for a small bird the size of a wren or chickadee. Yesterday, I decided to put the bird house in the back corner of my yard behind the elderberry bush. Hopefully a bird will want to call this home!