Before moving my chicks from in the house to the coop outside, I read that I should lock them in the coop for the first two nights so they know that that is where they are supposed to sleep. I did this, but it certainly didn't work. Every night they all huddle together on the ground in the run. We have to get them and put them in the coop every night. Is there a way to train them to go in the coop at night for bed time?