Hello! I am going to pick up 3 POL hens and a Swedish Flower Roo tomorrow. My existing flock of 5 pullets are 2 months old, and the hens and Roo I am getting are approximately 5 months old. I will not quarantine them as I know these birds personally and they are free of diseases. I do plan on keeping the new birds in a kennel until treat time, where they can scratch around together, but I have heard some success stories of sneaking in the new birds at night so they all wake up together, everything went smoothly. Will they be one happy family as they are fairly similar in age or will the Roo and older hens try to attack my littles? Thanks in advance for the help!