I am new at the chicken world and am having problems with my chicks. I have been watching my temp and the chickens behavior and I think that I am doing something wrong. I have cornish cross and other various chicks and am having trouble with the cornish cross. I have kept the temp at 85 to 90 and they seem to be super hot (acting funny) lowered the temp and they seem to act better. In the meantime they I seem to lose one a day (cornish cross only). I am very inexperienced and may be thinking to much and not doing the correct things by lowering the temp. I have been keeping the temp at 80 and they are only 1 week old so is this to cold? They are now two weeks and are doing better but I am disappointed in my losses, is this normal?