Hi Chicken lovers: My hens are about 7 months and they have lived in their coop/run for about 3 months now. They roost every night, same chicken (4 of them) on the same spot on the roost. I have a pullet shut door, so it automatically opens and closes. As the days have gotten shorter, the chickens all but one, have stopped going inside the coop. So the last 3 nights I have gone and put them in. I have lighted the coop so they will go into the lighted area, but they still refuse. And tonight all 4 of them are roosting outside in the run again. Is it possible the changing in day length has messed up their schedule? My coop and run is well protected, so they are staying out there tonight. They are making a mockery out of my automatic door. LOL. Anyway, I life in Pittsburgh and it's soon to be getting cold. How do I get them to go in again? And what could have caused it. ty.