I free range my chickens all day. The door goes up at dawn and down at dusk and they have the run of 30 acres all waking moments. I put out a gallon can of feed right by the coop once a day and that's it. Sometimes they don't eat it. How much feed do you offer if you free range all day? I have 7 13 wk pullets free ranging right now and 14 chicks and 1 roo in the brooder.