I have a dozen 8-week-old pullets I plan to let free-range over 5 acres most of the day each day as soon as they are full grown and might have a prayer against coyotes and hawks. They are brown Leghorn and EE, so they should be excellent foragers. I have heard that free ranging means you can cut back on feeding them, at least in spring and summer. My question is, what part of their diet is NOT fulfilled by the bugs and plants they can find in abundance all spring and summer? Could I get away with just giving them scratch or seeds or some other supplement during these months? I want them to be healthy and well-fed, of course, but I have a fetish for the whole less-is-more thing when it comes to my homestead. I want to encourage them to eat off the land as much as possible.