A 17 week old cockerel and they are doing that well? I think you are doing great. With a cockerel that age I'd expect things to be a lot wilder than that, especially with the older girls. He is still really young, things can still heat up. But my general rule is that of no one is getting hurt, no one is getting hurt. Another rule is that if they are together and life is good leave them together. Don't fix something that is not broken, you might break it.
Continue to watch them. As he goes through puberty you may need to step in. Go by what you see. You may need to fix something at some point. You never know with living animals.
Good luck.
Continue to watch them. As he goes through puberty you may need to step in. Go by what you see. You may need to fix something at some point. You never know with living animals.
Good luck.