I recently merged my 18 month old flock (1 roo & 11 hens) with my 6 month old flock (1 roo & 22 hens & 2 guineas). I moved the older smaller flock in with the newer bigger flock. I moved them at "go to roost" time and other than a minor skirmish between the roosters the transition seemed to go well until 3 days later when my husband called me home from work early to help catch the old rooster (Cogburn) who had been attacked mercilessly by the younger one (Pretty-boy) and had run off into the woods. Cogburn now needs to be true to his name and wear an eyepatch because Prettyboy put his left eye out. I have the 2 roos in solitary apart from each other and apart from the hens. Prettyboy is healed up but Cogburn will never be the same. My questions are, do I introduce them both back into the flock at the same time so neither has a "head start" at establishing dominance? Will Cogburn likely accept defeat and live peacefully or should I expect another blood bath?