I have 5 BA's that are approximately 7 or 8 weeks old. They have been in their coop with attached run for about two weeks. I let them out into the run in the morning and put them back in the coop at night. They still haven't learned to go into the coop when it gets dark. They will all stay out huddled in the run doing that distressed chirp after it's dark until I physically pick each one up and put them in the coop and lock them up. What am I doing wrong? They have food and water in the coop. Help!