Hi there. Completely green at this. I just put my four week old chicks out in their tractor three nights ago. (fully feathered and HOT here) They are loving it! However... they don't go into the coop end at night?! I have to heard them in one by one through the back egg door. I enticed one with a treat by putting my arm out the chicken door (through the inside) but as soon as it took the treat it went back down the ladder and no one else even tried? I thought this was a natural thing for chickens?? What can I do to encourage it? When the sun sets they huddle in the bottom under the coop area (it overhangs the run area) and chirp loudly.