Hello, I have 3 Ameraucana's they are 7 months old.... One of them has started peeking the other two tail feathers out. Today one of them is actually bloody?? I have read that Vics rub is it ok to use to discourage the pecking it is ok to us even on the raw skin has anyone tried this before??. I recently changed their food. Their coop was rated for 4 chickens but I felt it was too small so I only got 3 chickens. They have apporx 30 sq feet of coop area but I free range them for most of the day pinning them up at night. What can I do?