I am still trying to find a solid answer so I am hoping the combined experience here will help. We are looking to start a backyard flock for eggs - about 10 or 12 birds (we eat a LOT of eggs, at least 3 per person per day and there are 3 of us now). We will be new city chicken keepers with a house lot that is about 1/3 of an acre. Most of the open space is in the back yard and I would estimate there is well over 5000 sq ft for the birds. I plan on letting them out as much as possible to forage the lawn. I am wondering how much will they eat? Will they enjoy my lawn grass and lawn weeds? How much feed will I need to supplement them? Or is the "pasture" the supplement to their regular feed? Will they actually range over the whole backyard? Ive read a few books but I would rather use the collective wisdom of the experience here. And the books weren't all that helpful anyhow. Thanks!