Ok i have an A rooster Americana named flutter, i think he is like 4-5 months and mostlikely weighs like 6-7 lbs. He is scared of my silkie rooster and a wus and i want another rooster who can protect my flock. I have like 15 hens and 3 silkie roosters, 2 bantams, and Flutter, they all get along but i want to know if Flutter is going to get very big or not? And what a huge breed is besides a Jersey Giant...?