Checked on my girls today and the top girl is missing most of the feathers right around the front of the neck under her waddle. No blood, no signs of pests...Searched the run and noticed in one of the corners of the run behind a barrier there is a pile of black feathers (shes the only black bird). My guess is there was a squabble and she was pinned in the corner. I was somewhat surprised because she has always clearly been the top of the pecking order and also the 5 of them seem very peaceful. Is this something that shoud concern me or not. I am sure the first question will be space...they are in a 5x5 coop that stays open 24/7 to a protected run that is 12x12 not including the additional 5x5 under the coop that is part of the run. Any and all thoughts are welcome. Thanks