My son raised three bantam chicks this spring, they are just turning 6 months old. Sadly, two have turned out to be roos and they are not allowed where we live, although our neighbors like the chickens and won't complain. They are three different breeds and get along great- a millefleur hen, a silver seabright roo and a mixed-breed roo (beige and white with yellow legs and a small comb and wattle). We hate to separate them but don't want to get fined. We have an opportunity to exchange the roos for year-old hens of another breed and I am wondering how this would go as we are new at raising chickens. Thanks!