I have 18 chicks of a variety of breeds. They are about 8-10 weeks old. At first there was just a feather or two and now there is about 40. None seem to be sick. None have any bare spots and the feathers are mostly where they sleep. I had read before that a few loose feathers are normal. Am I still in the "normal" range? (and no I have not checked for mites/lice) Yuck!