We moved our babies outside a week ago and they were fine. We had a heat lamp out there to keep them warm. 2nd night out they were chirping sooo loud we thought a predator was out in the backyard so we brought them in the house for the night. But the next 5 nights they were fine out there. Last night, we put them in their mostly finished new coop (on back patio) with their heat lamp and AGAIN they were chirping very loud. We were worried they would bother the neighbors (they were that loud) we brought them in again for the night. Problem was, they continued the loud chirping. This has only happened at night. Any ideas on what could be causing this? or how to quiet them down once they get riled up? I normally love listening to them talk. Any help is greatly appreciated.