A couple days ago I noticed on the tailends of some of my chickens they are missing some feathers. I am thinking it I molt but I am not sure. They are still eating and laying eggs so I am not exactly sure it is molting. Another idea is are they being picked on by another chicken? I 8 chickens and I only noticed it on a couple of them. I been reading some threads and some says something about lice. How do I tell if it is molting, lice, or being picked on?