Same thing happened to me only I never moved anything. One of my PR girls (Plymouth Rocks) suddenly started appearing outside the pen in the morning (my girls roam the yard all day). I couldn’t figure it out so I decided to leave the pen door open after their sunset mush w milk and watched from inside the house. I saw her exit the pen, hop up the branches of the fir that towers over the coop, and then settled in on top of the pen. Mind you, she had been nesting at night in the coop for the better part of a year. Since we have raccoons, fox, cougars and bobcats in our yard on a regular basis, I couldn’t let the behavior continue. So after dark, I put on my headlamp, climbed the ladder I left out there near her new roosting spot and got her down and into the coop while she was all groggy. Three times and she was over it. Well that and closing the pen door after they get their snack. My PR girls are total drama queens, always making trouble and breaking the rules. Sheesh.