Yep, you've definitely got a roo. He might be OK with your older roo. I keep three together with very few problems. There will probably be some fighting in the spring, so you might want to pull the spur caps off before then to make them shorter and duller. It will work out best if one roo is definitely older and stronger than the others--then he just kicks their butts and all is well until hormones start to surge in the spring again.