Hi I bought a straight run of 25 bantam chicks, I would like to keep 2 roosters as protectors of the flock, as I also have 27 other standard hens. First will they be good to have around a 3 year old and secondly will they do a good job of protecting their flock since they are bantams. They are almost 6 weeks now. have you heard of aggressive cochin roosters? Thanks!