I've read to put their a cage down into the run for the day to let them all get aquainted, but I'm still worried to open their cage and let them all mingle together and even sleep together for the night. I have to work during the day so I'm not there to supervise other than evenings. My plan would be to put the cage in the run in the morning then I would plan to open the cage in the evening and let them all meet each other for a few hours until the sun is down and I can watch them during that time only. I've read through the forums thoroughly and can't seem to find anything about mixing full one year olds with considerably smaller chicks. Any reassurances or thoughts, please? This is my first time and just want everyone to be safe! my hope is safety in numbers but I don't think this will apply here...? Would it help or matter at all to keep the 2 prominent rooster chicks inside for the transition and take them out at a later date???