We just picked up 3, 2 day old chicks yesterday for our broody. Well, she did not accept them so we put them under a heat lamp last night. This morning everything was fine, they were all running around and peeping fine. Just went in to check on them about an hour ago, and the little black one is very lethargic. He/she is just laying there and when you pick her up, she just lays there and closes her eyes. We gave her a little sugar water that she was drinking, and we moved them away from the heat lamp a little more in case that was the problem. She will stand on her own, but she will stand there with her eyes closed and her head and wings dropped. Her breathing is slower than the others too. She hasn't peeped at all since this morning and separates herself from the other two. She will peck at some things, and she took off when she got scared, but besides that she just either lays or stands in one spot, or just walks around very slowly.