Can someone tell me how much a chicken eats each day? I know it will probably be a trial and error kind of thing to find the right amount for my birds, (I will have 13) but I was looking for a starting point. I don't want to put out too much food and have leftovers to attract unwanted animals. I was thinking of putting some in the inside feeder in the morning just enough for them to eat and then have a little outside in case they get hungry during the day. I work during the day so I would feed them again when I get home in the evening. They will have a yard 10' X 20' to forage during the day.