I have a young chick (just under 4 weeks old) that is looking very sleepy. She keeps sprawling out on the ground and lying there, and this morning she did not want to come out of the coop. She does not have bloody poop, loss of appetite, weight, or anything else unusual... she just wants to sit and lie down. When we fed the chicks, she was as voracious as any of them and enjoyed her meal with gusto, just as she always does. Is there a chance of coccidiosis, or is she just unusually sleepy? She was completely fine yesterday, flying and running around, eating, drinking and whatnot. Please could you tell me what to do? I'm totally new at this.