We just noticed today that our Rooster and our one hen both have bald spots on their back right where their tail feathers start. Now they are both darker colored than the other 4 chickens and the others are actually pecking at them in this area. They aren't pecking themselves. Can anybody tell me why my other hens are pecking at these 2? They just started a little over a week ago laying eggs. They are all the same age of almost 6 months old. And yes the rooster has been mounting all of them.