Hi. I am very new to chickens, any help would be appreciated. I have 12 bantam chickens various breeds, all 11 weeks old this week. My blue bantam cochin roo (who matured quickly at 3 weeks) is mounting and trying to mate my little d'uccle pullets. Is this normal behavior for a roo at this age? I thought they matured to this point at 4 to 5 months. I feel like I shouldn't allow him to continue at this age? I do have other roos in my flock and I absolutely do not plan on keeping them all. One, mayyyybe 2. He was one I was thinking of keeping but now I don't know if he's going to be too aggressive with my smaller pullet breeds. So should I stop this behavior, let it go, rehome him now.... im not really sure what I should do. None of my research has prepared me for this, haha . Thanks for your help!