My 3 new pullets (14 weeks old) persist in spending the night huddled in a corner underneath their A frame coop. This coop is within a larger run and is raised off the ground so there is a ramp for them to access their roost. I put them in there one rainy night and they did stay but it was a stressful exercise for all concerned and they haven't gone in again. Do I just leave them to it and hope they will eventually work it out? Any hints would be greatly appreciated as I love my girls and want them to be happy.