We have 11 hens--five hens are almost 4 years old, one hen is 2 1/2 and the rest are 1 1/2 years old. We were able to integrate the younger generations without incident. One of the younger generation Comets started looking puny so I put her in the chicken hospital in the garage. She perked up within the week so I put her back with the flock and wow, the 2 1/2 year old Comet came at her like a deranged rooster. The one I'm trying to re-integrate just tucked her head and took it--didn't fight and didn't run. When she showed up with some peck marks on her head, I dosed her with an anti-peck product, but the abuse continued. So I pulled her out again and tried to smuggle her in at night when it was dark. Lights come on--the crazy comet attacks again. We've put her in a separate pen in the yard so the flock could see her but not get to her but when given a chance, that comet attacks. I admit, we only tried this a couple of days because it was an ordeal. I'm not one to kill a bird (hence the three generations of hens). Does anyone have any ideas on how to re-integrate my comet? Thanks. PS, the crazy comet is laying, the victim is not.