I have 17 6 to 9 week old chicks that will not use the roost at night. I have just moved them from the pen to the main coop and for the first two nights they just slept in the run in a "chicky pile"(puppy pile). Last night I put them in the coop and closes the poop door for the night. I am just wondering when they will start to use the roost. They have been free ranging with the other chickens for about two week now, so they all get along for the most part. I have tried to put them on the roost but they just go back to there pile. It is very hot here and there is no fan in my coop at this time. I close them in at around 9ish and Dh opens it at around 5ish so they can get out before the heat really gets bad. They had roost in the pen but there is no coop on the pen at this time.