It is a mild start to Dec. in PA and my 6 girls (2 Rhode Reds and 4 Barred Rocks) are 18 months old. I have never had one do a true molt just bunchs of feathers. Well this past week on of my girls( Rhode Island Red) started a huge molt. Then the others started the pecking. She can't even leave the coop when they are in the pen. She is sleeping in a nesting box to keep clear. When pasturing, she stays far away. I believe I have identified the two big bosses of the group. They have only pecked before to maintain dominance. I have one other (BR) who is head pecked but not to an intolerable level. She joins in with all of them. I am starting to give BBQ (my husband named her) her own food and water. She is eating and acting normal. Her comb is up. Does anyone have any ideas. I have no room to jail the other two birds. Will they stop when molting stops? and why is only one molting now!