2 days ago I posted a thread that my girls will not use their roost to sleep. They like to huddle in the corner on the floor. everybody that responded said they will eventually start to use the roost. Tonight i opened the coop to put them in for the night and 1 of them jumped up on to the roost and then the rest followed her. I guess i should have just waited 2 days. But, thank you all for your responses.