Chickens attacking Pekin Bantams

[coolmoyneman]

Hi, I recently aquired my first pair of pekin bantams. However, after following all the usual routines of introducing them to my 4 other resident chickens (normal hybid laying chickens) each time I try to let them free together the big chickens attack the pekin hen. They do not touch the pekin cock at all. Is there any way to stop this? They are all in the same fenced enclosure (approx 25 square metres) and I have the pekins in a separate enclosure within this but almost a month has past now and each time I let the pekins out the bigger hens go crazy and attack?

Any help would be appreciated.