We have 1 RIR Roo, and 5 hens( 1 RIR,2 Buff orps,and 2 leghorns),, For the past 2 days, my roo has terrorized my RIR hen. They are all 11 weeks old and grew up together. She just hides in the coop because he chases her all over the place. Is he trying to mate? He hasn't even crowed yet. Advice needed!