Chickens won't roost!!! They are around 11 weeks old now and I put them in a brand new coop about a week ago and they have yet to get up on the roost. It's only 33 inches off the ground (lower than the window and they fly up to it all the time) set up ladder style with poo board underneath. They all walk in about 9:00PM and crowd into one corner on top of each other. It has to be 85 degrees in there at that time, I keep thinking I'm going to find one or two dead the next morning. What am I doing wrong?