Are chickens smart enough to go into the coop when it gets cold? Ours have always roosted on the 8' high roosts in the screened "open" area of the coop at night. This was fine for their first summer but overnight temps are dropping now. I put heavy canvas covers on the gable ends last week to help cut down on the wind but we're expecting overnight lows in the upper 20s this week. So far the girls show no interest in moving into the enclosed portion of the coop other than to lay their eggs or take a nap during the day. At night they are all back out on the upper roosts. I'm not too worried about the big girls but I'm a little concerned about Phylis, our little frizzle. She barely weighs 2 lbs and is just a ball of fluff. The others are 4-7 lbs easy. She likes to roost between two of her large cousins but is this enough warmth for real cold nights? The interior part of the coop is 3' wide x 8' long x 6' high with 12 large nesting boxes and several roosts. It has windows on the east & south elevations. Well ventilated and cozy too. Don't understand why they would rather be out in the cold. Is there something I could do to entice them to move "indoors" at night? I mean , other than physically popping them in and closing the door?