Hi all, This is my first batch of chickies, and they are about 2 weeks old now. About a week ago, one of the black australorps started to look kind of unkempt. She looked like she had bald spots on her, but upon closer inspection, it looks more generalized. Her feathers are just extremely sparse along her back and neck. I never have seen any of the other birds bothering her. However, she does seem to spend a great deal of time preening herself. Could she be pulling out her own feathers? Could she have mites? I got her from Ideal, in a shipment of about 23 day-old chicks, and none of the others has this problem. Thanks!