Have many of you raised Cormish Rocks? My buddy bought 2 dozen chicks. Supposedly day old. Any how within 2 days he has lost 10 of them. He purchased them at the local TSC store. They are going to replace them, which is a good thing. My question is are the Cornish Rocks hard to raise. This is his first bunch in a number of years, so he does have experience. Any help or thoughts would be appreciated.