Ok, so I live in South Texas and it's anywhere from 90-100 degrees here almost every day. I've got my chicks in a kennel, i keep the kennel in the garage at night and during the day I move it into the laundry room. I've attached a thermometer to their kennel and I am constantly monitoring it. The temperature is always between 90-100 degrees. They chicks are not panting nor are they huddled up as if they were cold. Is there still any reason I should set up a light for them? Is the only reason for the brooder heat?