This is my first time having chickens and Guinea hens. I have 9 chickens and two guineas. I bought them as Pullets about 6-8 weeks old. They stayed in the coop for 2 weeks, then I let them out in the covered run. They didn't seem to know to go back into the coop, So I put them back in. and left them in there another week. I let them out and they went back in for about a week, then all of a sudden they wont go back into the coop at the night. They gather in a corner in the run. I keep their food in the coop, and they go in and out during the day to eat, but not at night. I am unsure what to do to get them to go into the coop at night. They are about 3.5 months old now. Do I take the food out during the day and put it in as it gets closer to night as was suggested by someone. There isn't anything in there, predator wise, so I don't understand why they wont go in there at night. Any help is much appreciated.