There are lots of ways to raise chickens in one's backyard: free ranging, rotational pasturing, tractoring, etc. Meat breeds tend to eat a lot of feed and gain weight quickly, and those traits have come at the expense of foraging behavior (cornish cross, we're looking at you). One way to get those meat birds out in the fresh air a bit while forcing the little butterballs to eat some greenery (and poop around the yard instead of two feet from the feeder) is to put them on a bit of a diet and…