Another question. We had a very cold night last night in Alabama. I live in a farming community just south of Alabama. One of my Cornish Crosses got up this morning and looks very strange, his head is sort of twisted. Is this the dreaded "Newcastle" disease. Is his neck just stiff from the cold. He cannot keep his up up straight, it is sort of hanging to the side. He is feeding and drinking normally. Is there anything that I can do.