I dug a trench about 8" deep the whole perimeter of the run, and put in 2 foot wide hardware cloth with 1/2" mesh in it. The cloth runs up nearly 1 1/2 feet outside of the outer 8 foot tall plastic mesh fence, and I have a strand of electric fence tape at a little over 1 foot above the ground to zap anything that tries to climb over or attack the fence higher up.
And I dumped a bunch of dried very hot crushed peppers around the perimeter when something tried to dig under anyhow. It went away, whatever it was!
And I dumped a bunch of dried very hot crushed peppers around the perimeter when something tried to dig under anyhow. It went away, whatever it was!