They are a week old now. We've been losing almost one a day since like day 2. It's all the chicks from Meyers Hatchery. The chicks from Hodges Farms are all fine(same age). But I've lost one of my marans, a white rock and all of my GLW and SLW. I think a couple were due to pasty butt. I had cleaned it off that day, but overnight it go blocked up again and was dead in the morning. This morning another one dead and no pasty butt. They seem perfectly fine until they just suddenly die. I will never order from Meyers again.