We get 150 chicks Wednesday. They are mostly Cornish rock pullets some BR roo's and BO roo's. So far we have lost 5 and there is another 6 that will soon of the Cornish rocks. We have 2 heat lamps on them there is no draft. Its not to hot in there and they are not hanging out under the light like they are cold. I know you will loose some but this is a lot (I think) They come from Mt. Healthy Hatcheries. The ill one's don't want to move around and not eating or drinking. I have them in a box under the light so they are not with the healthy one's. Any thoughts?