I originally thought I'd just get a couple dozen barred plymouth rocks to start but after seeing, researching and reading about all the different breeds I'm able to get next spring I have decided I'd like more variety. So my questions are: What are the advantages or disadvantage to having a mixed breed flock? If I pick 4 or 5 breeds or crosses of these... Is getting like 6 of each breed/kind ok? Will each breed have a boss chicken or will one or two birds emerge from the group? I'm just getting large birds so no little ones mixed in. I will only be ordering pullets too.