We recently moved (about three weeks ago). My three hens are digging in new dirt and because of the yard layout are having less free range time. I have noticed that at least two of the girls are having diarrhea and one of them has not lay in three days which is unusual for her. Aside from this they are all acting perfectly normal. They are running around, eating lots of bugs, worms, etc. Any ideas about what might be causing the diarrhea, and how to fix it? Also, could it be related to the lack of egg laying?