Last year, I bought my first chicks (2) to see how I would feel about this whole BYC thing. LOVE IT! I lost one girl to a renegade dog and have since built a better coop. One month ago, I acquired four more pullets and kept them and the brooder in the house. Well, they decided last night at midnight to have a party and they didn't invite me! The noise was unreal! I am ready to put them out in the coop with my lone hen, but not sure if there is an "age appropriate" time. All five girls had a play date, and only one of the pullets seemed to challenge the hen. No blood was drawn, but I did not leave them together for very long. Is it safe to leave them together overnight? I've got to get some sleep!