I have a small 3 foot by 4 foot coop. The fly problem started small... 5 or 6 flies in the coop at a time. Now they are EVERYWHERE! In the coop, in the run, all over the place. There are little gnats (I guess they're gnats, they're not exactly like the ones you sometimes see indoors) crawling on the outside of the coop. Today, I noticed one of the poop piles was crumbled up (for lack of better word) and actually moving a little. On closer inspection, there were little worm like things moving around in the poop. I change the pine shavings once a week. I sprinkle DE under and on top of the pine shavings and in the run. I haven't noticed much of a change and the flies are worse today than they've ever been. I live in a very humid climate (Louisiana)... so I know that makes it worse. Is there anything I can do besides DE? Or am I doing the DE wrong? Is it best to completely dump the shavings every week or just scoop out the droppings? At one time, it wasn't worth the effort of scooping since they pooped all over the place, but now they poop in the same spot every night. Any ideas? It's just really nasty to see all the flies and larvae (assuming that's what I saw) all over and in the poop!!!