So I have 8 15 week old standard sized girls. They are not particularly aggressive...meaning they don't pull each others feathers, peck at each other, force each other out of the way for food/water, besides the normal pecking order posturing. Anyway, I found a family who is looking to get rid of some cochin cross bantams and I was considering taking one or two in. Would this be a difficult thing to do? Would it be better to get one or two? How would I go about integrating? This is my first flock and I have never integrated chickens...are they too old to integrate smoothly? Thanks!