I ordered 60 pearl gray guineas from Cackle Hatchery. They have been here a week. Every morning I find a dead keet in their brooder pen. The rest look healthy as can be but by the next morning one is sure to be dead. I have checked temperature, double checked that they are getting Starter food (unmedicated) and their water supply. All are adequate. I am stumped. Does anyone have any ideas as to what is happening here? Thanks in advance for any replies!