We just acquired six 8 week old bantams. Right now they are in a pen by themselves but we would like to put them in with the others we have. We have 3 hens and 1 rooster, fully grown and quite big breeds (Orpington and CobbX). Is there a certain age that they should be introduced to each other? All the birds are free ranged during the day and penned up at night. I would like to let them out during the day now but so worried they will get picked on or pecked on lol. Any advice?