My chicks are mostly fully feathered (5 wks old)..they still have tiny remnants of down around their heads. Right now they are in the guest room in a baby pool during the day and go into a pen in the backyard int he afternoon for several hours until the coop is finished. They'll actually go on the back porch as soon as the cold weather gives way to spring temps and from there we'll transition them to the coop. My question is, when can I remove the light? Also, did you raise your chicks indoors or in a barn or coop? If inside, when did you let them out to spend the night by themselves without their light? Sorry to ask so many freaking questions!!! TIA!