Modern Bird House Feeder with Fence holder

This is a remix of https://www.thingiverse.com/thing:3082485, created by ZammaMaker.

I made an adapter to put the birdhouse on a standard 60x40mm fence post.
On the adapter, I have 2 O-rings with a diameter of 29mm, thereby holding the adapter well in the post and can be easily removed.
If you put a little bit grease on the rings, they will slide easily into the fence post,
On the plate I have attached a lettering, which I have highlighted in white.
The adapter is screwed to the plate.