Not sure they acted like two roos today when I took them outside for some yard time... But I am inexperienced and this is my first roo and first time with Sebrights... I really just dont know, I just hope I dont have a slow growing roo. But if I do no big deal. Its just a reason two get two more hens. I hope I posted pics correctly. First two are my Roo and second two are my hen I think.