I have a flock of 15 chickens that are 7 weeks old today. I'm still not completely sure how many of these are roosters, but I'm suspecting 5, just because they have big combs. (But, 2 are black australorps, and it could just be females with big combs). I know 5 roos would be too many... but, I'd like to keep one, if I could. These are my first chickens. I am new to this. I have 7 easter eggs in the incubator, due to hatch in one week. I'm hoping for an Easter Egg roo, because I would like to make more easter egg chickens in the future. By the time these newest birds feather out, and are ready to join the others... are the older ones still young enough to merge? Or are those first "roos" (if they are) old enough to be too far ahead of the new ones, and I'll have to get rid of them? Basically, the chickens will be 8 weeks apart in age. I hope I explained this well enough. I know a lot just depends on the personality of the birds, but I'm too new for trial and error, so more interested in what the "general rule" would be. Thank you.