three month old chicks will not enter their coop. this is the same one they have lived in their entire lives, the only difference is that I moved the coop from my basement to the back yard. I tried enticing them with food, didn't work. They huddled up against the basement door and would not even consider the coop. Could not leave them outside all night due to predictors . Finally, 9:15 PM I relented and opened the basement door.