I noticed this morning that one of my hens, a Partridge Rock, is missing feathers on her head, right behind her comb on either side. The two balding spots are even (almost look like thinning patches), but the skin underneath doesn't look red or irritated, maybe a bit scaly, I'll have to catch her later and check her over more closely. I don't see that she's losing any other feathers that I can see and there does not appear to be any injury to her comb either. I'm not sure if she's starting a molt, or if she's being feather picked by some of my other hens, I have a couple of BCM hens who have been overly aggressive to the others, one who may end up in the crock pot if I can find some roos to process with her. My White Rock, who I got with the Partridge Rock did sustain a comb injury from an attack by the nasty BCM, but is not missing any feathers, so I don't know that the two incidents are related. Is that an area that is common for a molt to start (she was a year old this spring)? Or is that an area that a rooster would start to pull feathers from during mating? I have a BCM cockerel who is mating with the ladies now, but I haven't seen him do the deed with this particular hen (doesn't mean he isn't). Update to add a couple pics: A couple of my Black Copper Marans hens also have some thinning in the same areas, but not nearly as much. I didn't see it until I was checking this girl out much closer. I guess this is probably from mating then?