I got my other new chicks 21 of them 10 barred rock and 11 Rhode Island Red bantams. They are already one week old and it gets in the mid 80s in alabama. The temp drops close to the 50s but mainly in the 60s at night. I know they are fine without a light during the day but I wish I could save on the power bill. Could they possibly go without the light at night without any of them dying?