My four girls turned 1 week today. They are out in their play pen during the day with a shady area to hide in if sun gets too much. Today they discovered how yummy Japanese beetles are. I wondered if I should limit how many they eat per day? Also, they are still sleeping indoors (in a pen) with a brood light on at night. How much longer do they need that extra heat? How old should they be when they can stay outdoors in their chicken coop and hen house at night?