That is so cool! You must have really a lot of earwigs up there. Yikes! I wouldn't be able to deal with that, having an irrational phobia of earwigs. It's so interesting to learn how you trained your chickens so well. When I used to keep chickens, I didn't ever let them free range because of the mess they made of all the garden areas. I was down with them eating bugs, but not so much with them scattering mulch all over the place and pooping in inappropriate places. Sounds like you've got it down!