Hi, we are first time chicken owners. So far we only have two chickens that are 4 weeks old. They are Ameraucana's and it appears as though we have a cockrel and a pullet. We would like to add at least two more chickens (hens) to our flock, if you even call it that, with just two chickens. My question is, is it easier to add two more now, while our other two chickens are young? I have heard that it is difficult to add chickens to an older, more established flock. And should I get some more chickens around the same age or does it matter? One more question... my husband is interested in getting another set of hens that are a different breed than Ameraucana. Is there a breed that we should look into getting that would be compatible in temperment to the Ameraucana's? I don't want anyone to get severely picked on by having different breeds. A most agreeable chicken is what I am going for. My Ameraucana's are mostly calm. They don't want to be picked up very often, but they don't act crazy and they are very close to each other. Sleeping with their heads resting on each others backs and snuggled up together, but they WILL snatch a worm from each other if necessary. Thanks!