First time broody hen is hatching out a clutch of eggs on the floor of a nesting coop. No chickens roost in there but the other hens still go in to lay in the nesting boxes on the other side of the coop. There is a piece of wood at the foot of the entrance to prevent the little chicks from leaving but big hens can come and go. There is another broody hen sitting on a clutch in the other end. I peeked in today and saw at least 4 chicks and she is still sitting. I saw one baby with a red head. I initially thought some kind of birth defect because it doesn't appear to be an injury but I really don't know. Any help is appreciated. The chick seems fine, i.e., walking around, chirping, drinking.