The oldest ones are only about 4 months old. They are not causing problems at all so far, haven't seen even one try to jump a pullet, I do have a lot of other roosters right now that are a little older so they are pretty far down the rooster pecking order. As far as people go, so far I find them timid and -very- flighty, the orangy one is pretty friendly but I spent an hour following these little guys through the shrubbery to get pics. The SPQs are the same age range and a lot bolder and more willing to talk to people, those roos will follow you around begging.