I have three OEGB hens and two of them are 1 year old's, the other is a 2 year old hen. I got the bb red 1 year old hen first, then a week later a silver duckwing hen she's two years old, then 3 week after that I got a black OEGB and have had her for a couple days. The bb red and silver duckwing finally settled and as soon as I added the other hen the silver duckwing is the meanest little chicken she is always pecking and fighting with other hen's why is she so mean, I would separate them but the only other cage I have is out side. Their is still snow on the ground and it been in the high 20's low 30's during the day and low 20's at night could I put them outside or is it still too cold?