adding a bantam to a regular sized flock?

I personally would not add a single new bantam to a flock of standard birds. Maybe if you had several it might work better so they wouldn't just be going after the one.

I have one Golden Sebright in with my standard flock but she was raised with the from day one. She got along ok the first year or so but eventually one of my RIR hens took to harrassing her, she got fed up with it and decided on her own one day to move out of the coop and hang out with another hen, who also was not accepted by the flock, in my goat barn.

 

I wouldn't add one. But to be honest... that's just an excuse to start up a bantam only flock right?? That's what I did.