Hello! Thanks in advance for your help! We have 10 various hens that are 16 months old and teenagers (as we like to call them) that are 4 to 5 months old (5 hens 3 roosters). Currently they share the same coop, but are separated into separate sections so they can see and hear each other but cannot mingle. Each group has their own outside run. Well one of the roosters (we call him big John) is starting to getting REALLY aggressive toward the hens. We are currently looking for a home for the roosters. I have tired twice now to merge the two flocks early in the morning when I opened them up to let them outside. Immediately the older birds found the younger birds and started pecking them! We tried to leave them for a bit to see what would happen, but the kids and I were worried that they would peck the young girls to death! One of the younger birds they didn't seems to bother too much but the two small speckled sussex they were really going after. So we moved them back with the roosters. I have been reading the old threads and here is what I am thinking and would love any thoughts you have! 1. Try to integrate them at night and see what happens. Or just integrate in the am and let them go...or have the kids sit and watch for while....will the pecking go on for a few days?? The question is will the older chickens peck a younger one to death or do they just pick on them so the little's know who is boss. The teenagers are a little smaller then the older ones but not much. Thanks for any thoughts and advice you may have!