I went in the coop today to find my smallest australorp laying on the floor and panting. It was not hot in there, but I still thought maybe the chicken was hot, so I brought it outside and dipped it in cool water, which cools them off when they are hot. It still is panting and laying down. I can't figure out why it is doing doing this, but I think it is probably a respiratory disease. I am really worried about this, anyone know what it could be?