We have an egger that everyone is fighting with. This flock was raised together and has been fine for 2 years.It started about 4 days ago so we have her confined in a cage in the garage to heal. I don't know what happened but one day they just started. I've taken her outside when the others are out for their evening adventure but as soon as they see her, they will all gang up on her and start pecking her in the yard. I'm afraid since they are targeting her face and neck they will peck her eyes. Today, we thought we'd try introducing her back into the group (there are 8 total) and as soon as we put her down they all went after her. Even when she flew up to her roost, they went up there too, She seems healthy. We tried changing scent with diatomaceous dirt and seven, but it didn't help. What could be causing this? They have plenty of room, the coop is about 24' x 10'. We had a rooster we rehomed about a month ago. Any help would be appreciated!