I just moved my six week old chicks to the coop. I currently have the lamp on and was wondering if this is necessary. The temperature at night is in the mid to high sixties. Daytime is in the mid to high seventies. Also I am currently feeding and watering in the coop and had them in the run today but I was reading and decided to leave them in the coop for several days to get in the habit of roosting there. Any feedback will help.