We just picked up six leghorn pullets from TSC about 4 hours, ago. So far they've been very quiet, extremely mellow. Usually our chicks are cheepy, energetic little things that sleep in a pile. These are just kind of laying around not in the usual chick pile but just all around the tub they're in. Possibly breathing heavy.. They seemed ok in the store. Should I worry? These guys are inside away from my coop/flock. We're washing hands after handling the chicks. Is there anything else I can do if they're sick??