Try a Buff Orphington rooster if you get a chance. They are pretty good at protecting thier hens and somewhat dosile when handeling them. Start working with them when thier pullets and they will work out nice. A do agree that your roo is too young and "just one of the girls" until he gets a little older and he realizes that he's a rooster. I think your flock is just setting the pecking order at this time. It wont take too long for you to figure out if he should go and try another roo. It's funny to know that I have a hen as the #2 boss in my yard. She pushes around my barr rock rooster.