Our chicks are about 3.5 weeks old. Right now they're in a large, clear storage container w/shavings, food, water, some fresh grass and grit. Right now they're all peeping rather loudly, looking out of the side of the brooder at us. They won't quiet down and chill out. I've given them the grass and a few mealworms. I fluffed their shavings, readjusted the light, filled the water. They just won't settle down. What can we do? We tried turning off the light and the cacophony gets even louder! Any ideas?