I have four Orpingtons and one has her neck missing. Not bare but it looks like she's being pecked. Once in a while I hear a squack and a "chest bump" between two of them. What should I do????????????? I do not want to lose her. They have PLENTY OF ROOM to free range... 1/4 acre just for them so confinement is not a problem. Plenty of treats! She often spends time sleeping in her box at night so she is not being allowed to roost... I assume. Anything would be helpful. We are approaching winter here in PA so I'd like to get this nipped. Thank you!