Is the Roo agressive? I don't know nor do the owner know if it is a male/female because it is only a few weeks old. I had a RIR Roo that I had to give away because he was very mean to everyone including the ladies. I wouldn't mind having a Roo if he is not aggressive but, I don't need a new mean Roo. How well do Barnevelder's adapt to other chickens?