I have just successfully (or so I thought) combined our 3 mature chickens with our teenagers in the adult coop and run. I checked on them just before dark Monday night and most of them were on the roost - getting along just fine, thank you very much. Then I saw a few of them hanging out in front of the nest boxes, and some actually sitting in the nest boxes. "How cute" I thought. Didn't think anything more about it. Then I came down to let them out on Monday afternoon,and checked inside the coop - The teengers aparently think the nestboxes are toilets, because they had pooped in a few of them. What the heck?!? How do I address this behavior? Is it because the teenagers aren't of egg-laying age yet? I don't want the adult chickens to be put off laying in the boxes because of this. .