I have this three week old Black Australorp Chick, and yesterday I noticed that she had some bald spots on her neck and and sides below and on the underside of her wings. So when I picked her up to look and see what it was and if I could see any small bugs suck as Lice or Mites. I can't see anything and I was just wondering if anyone else could that maybe has more experience with chickens?? If anyone has any ideas as to what this could be and if it can be spread to the other chicks please let me know. If amyone think that it could possibly be spread to the others and would cause them to die please let me know if you have any suggestions as to what to do with this chick. Should I separate this chicks from the others??