My chicks are 3 weeks old today and I moved them into a 103 gallon galvanized tank with heat, food, water, and fresh sawdust. That have not stopped chirping!!! Is this ok? I want to think it's because they are just happy chicks... Also can you tell at 3 weeks if they are a cockerel or a pullet? There are 2 that are slightly bigger and have a taller comb. They were all suppose to be girls. What do I do with these boys if that is what they are? I got them at 3 days old. I will get new pictures and post tomorrow.