I have 3 white orpingtons along with 3 barred rock that are 5 weeks old. I also have 6 bantam silkies that are about 4 weeks old. My silkies are quite a bit smaller than the others and the orpingtons are just down right mean to them! They go out if their way to attack them. Especially one if them in particular. The barred rock are a little better with them, not near as mean. Can anyone tell me why or have any suggestions on what to do? I've kept my silkies separate for most of the time I do take them outside and let them free range most everyday together. I really wanted to be able to jeep them all together in a coop though once they are old enough. Is it just because of the size difference? From what I've read orpingtons are generally friendly, did I just get a bad set?