Well our chickies are going to be 3 weeks old on Tuesday. Being that we are brooding them indoors, and its still chilly outside so we keep the house heat on, the temp in their room stays at roughly 70-80 so we aren't using a heat lamp anymore. We've replaced the heat lamp bulb with a normal energy saving bulb strictly for light now. They are nearly fully feathered, and getting quite large (each just under a pound I'd say). I'd like to know when I can start turning off their light for 'night time', as we dont really plan to have a light in their coop (no electricity unless we run a 200' or so extension cord from the house!) and I need them to get used to 'dark'. Suggestions are appreciated!