My chickens free range all day at the edge of a forest with lots of forage available to them (berries, nuts, bugs, plants, grass, hay, etc) but I still give them a couple scoops (roughly 4 cups) per day minimum for ~15 birds. If they eat all that I give them another scoop before bed. In the spring and summer they eat less dry food. Right now they are foraging all day and still eating ~6 cups of dry food. I hope this helps.