I have found a lot of posts and threads on adding used bedding to compost piles, and adding compost piles to the run so the chickens can scratch, pick bugs and stir the compost. But although I have been searching most of the morning, I cannot find anything about adding used bedding to compost piles that are in the pens so the chickens can scratch and find bugs. Maybe this is common knowledge and that's why it hasn't been mentioned, but it's still an unknown to me. Is it OK to add used bedding to a pen-bound compost pile? And if so, is it OK to use DE in the bedding? Or will it kill the good bugs in the compost just like it killed the bad bugs in the coop? Thanks y'all for your generous replies.