Assuming a coon could not get in anywhere except to go over the top, you may be able to deter them with an electric fence around the top of your run. They make some small, light units like this:
https://www.amazon.com/dp/B01FY6BNO6?psc=1
They are available at a lot of places like Lowes, HD, Menards, Ace Hardware, TSC, etc. If you have AC current available, those are cheaper. They make a snap on insulator for a chain link fence, so you would just run a single hot wire around the top of the run, including above the gate. Ground it to the run. Install it all the way around the top, turn it on and let it run 24/7.
Coon can't get through your chain link fence, so climbs the fence, hits or grabs the hot wire, gets zapped and drops off......hopefully is taught a painful lesson and leaves, never to return. Chickens are safe, no late night drama and a whole lot less worry.
https://www.amazon.com/dp/B01FY6BNO6?psc=1
They are available at a lot of places like Lowes, HD, Menards, Ace Hardware, TSC, etc. If you have AC current available, those are cheaper. They make a snap on insulator for a chain link fence, so you would just run a single hot wire around the top of the run, including above the gate. Ground it to the run. Install it all the way around the top, turn it on and let it run 24/7.
Coon can't get through your chain link fence, so climbs the fence, hits or grabs the hot wire, gets zapped and drops off......hopefully is taught a painful lesson and leaves, never to return. Chickens are safe, no late night drama and a whole lot less worry.