Just in case Frank gets held up for a bit, Seramas have awesome dispositions. They are absolute sweethearts. Of course, you occasionally, as with any breed, get an aggressive little bugger, but for the most part they are calm, sweet, and love to "show off". I would keep my hens in with my bantams and 1 standard, but my cochin picks on them. I've had no problems with the rest of my ladies though. So most people keep them separate because we breed them. I'm sure if you had a bantam pen and some hens they would do just fine together.