I have 27 chicks (26 Jumbo Cornish X Rock Males and 1 dunno). They were hatched on June 7th at MMM and arrived via USPS on June 9th. We went through the week 1 sticky bottoms just fine. Week 2 brought sneezing and a near death experience. Last Thursday they were laying out prone in the bottom of the brooder (toward the outer edge and not touching each other) and I was sure that they were dead. I put Terramycin in their water anyway, and they seem to have made a recovery. They still sneeze, but they're up fluffing their new feathers and eating and drinking like never before. I have moved the heat lamp up until I'm afraid to move it up further at risk of chilling them. They get fresh water twice a day, and the only thing I can think of is that the litter is bad. I bought it from Southern States, and it doesn't say that it is pine litter. The manufacturer's website says that the majority of it is pine litter, but there may be shavings from other soft trees as well. Should this be my concern? Should I switch to the 100% pine litter that I can get from Tractor Supply? The chicks are eating medicated chick starter because they were not vaccinated for cocci. Should I be concerned about illnesses? I'm still new and guessing, so I could really use some other thoughts and opinions about this.