It might be hard to make the mods due to space. If you cut a approximately 45deg piece and install in the feeder (see below)
Here is my setup:
https://www.backyardchickens.com/t/537861/automatic-feeder-attached-to-the-coop
I have new mods design, but didn't have material to build it yet.
I was thinking build one this these before, but I am using chain link fence for the run. The hole just too big and the rats would eat the feed. For those who plan to build one of these, I would suggest 1) place the board to cover the feed and have few open holes so the chicken don't waste the...