We just moved our flock into a new coop from a tractor coop. I have now been able to view their nightly ritual before going to bed and it is a little disturbing. Some history on our chicken drama leading up until now: One of our hens had its eye pecked out about 3 weeks ago, and another was attacked by our dog and had the feathers ripped out of the back of its neck about 2 months ago. I seperated the hen attacked by the dog for a few weeks while she recovered and she integrated back into the flock well. Then the missing eye episode. I isolated that hen and integrated her back into the flock after about 2 weeks. Her eye got worse so I separated her her again for a couple of days, this happened twice. In the mean time we finished construction on the new coop so I reintegrated the one eyed hen again. Fast forward to now: I still wanted to put ointment on the eye so I figured the best way was at roosting time. This is where I observed mainly one and sometimes 2 of my other hens chasing her off the roost, and/or pecking her eye every time she got on the roost to sleep. They also peck/bully the hen with a bare spot on her neck when she got up to roost. I felt really sorry for the one eyed hen until I saw her peck at the "naked neck" chicken too. I have not noticed any of this behavior during the day. Is this normal nighttime behavior? My main problem is with the Alpha 2 hen. She is high strung and was reared from a chick with the rooster, so she thinks she is hot stuff. I separated her for 2 days, but it did not help. It actually made it a little worse because my alpha 1 hen cozied up to the rooster in her absence. Hen# 2 will do anything she can to split of Hen 1 and rooster. It just worstens the night time unrest.