Two of my familys chickens are molting right now. They're both orpingtons and a few of the other chickens seem to pick on them when the flock is eating. One of them is bullied a lot and yesterday I noticed one of our other hens pecking her on her neck, where she hasn't gotten the new feathers in yet. We took her away from the food, but when we put her back none of the chickens were bothering her. Do we need to separate the chickens who are more vulnerable from the ones who peck them, or should we just leave them with the rest of the flock until their feathers come in again?