Dad and I were checking out the chicks that are nine weeks old today. I noticed that two of them looked like they were missing feathers just above the tail. When we looked closer we noticed that the skin looked flaky and had a yellowish tinge, there were new feathers growing but the sikn between the wings looked almost like they had dandriff. These chicks have not been outside yet, still have access to a "box" with a heat lamp and a indoor run area. They are seperated from the larger laying hens by a chicken wire fence and door. The laying hens are free range during the day. We are relatively new to keeping chickens (less then a year), so we are not sure what it is that is causing this problem. I will try to upload some pictures of the chick's backs tomorrow. If anyone has any ideas what might be the problem please let me know. Thanks.