I just made my 1st order of chicks from Mcmurray. All 25 were dead on arrival. What gives? Has this happened to anyone else? What killed them? They are sending more free of charge, but I am scarred it is gonna happen again. When you pick them up at the post office, will they be chirping and moving or will they all be sleeping or quite? Are the pretty vocal and mobile at that young of an age? Could the cold weather have killed them?