I currently have 3 Isa Brown hens and will soon be purchasing chicks to add to my flock. My question is, which breed will do best with the Isa Brown's I already have? I would love some Buff Orphington's but I am afraid the IB's will peck at them if they are as docile as I have been reading they are. I would like to make a happy thriving coop so any advice is appreciated. Thank you.