He was fine a couple days ago... Today we found him in the coop, Lethargic, eyes closed uninterested in any food or water. He does have lice, which I put some DE under his wings to help with. He has lost quite a bit of weight and now isn't holding his head up except every few minutes it's as if he tries. Wgen we brought him in a couple hours ago I got him to eat a few pieces of vans by setting small bits in his beak then he would eat them. He is cold as well, so I have a warm water bottle under him now and a warm towel around him. Is there anything I can do?