When my flock had hit 6 weeks of age, I moved them from their brooder to the coop, but I was not finished building the attached outside run until last week, so for 3 weeks they have been living in the coop. So this past Saturday I finally finished the run and they are loving life! However, when night time comes, they don't migrate back to the coop. Instead, they bunch up in the corner of the run next to the ramp that goes into the coop. During the day, I do see go in and out, so they definitely know that the ramp = in and out of coop, but will they ever all learn to naturally go back to the safety of the coop at night? I have several chicken owner friends whose flocks do this like clockwork. Mine are only 9 weeks old, so I'm hoping it's just time that I have to wait on. Any suggestions?