My chicks have been in there coop for a week now. I just stopped using the heat lamp. So they have had 2 night with out it so far. They all pile up by the door of the coop and sleep there all night.....I think there scared of the dark. They also peep loudly when I turn the lights in the barn of and/or shut the barn door. They are 5 weeks old. Are they scared of the dark? When will they get used to it? Will they be okay? I feel like such a bad mommy!!!!!!