...which I don't have, but anticipate now, especially having read Pat's page... I'm going to end up keeping probably 20 chickens. We will have movable fencing and will be able to create 2 run areas of about 4000sf each. They won't be covered, although we may even be able to add a 3rd. One is uphill from the yard, and the rest is down hill from the house, but not a real hill. We are also uphill from our neighbors (but on a 3 1/4 acre lot, so far enough away). We live in MO, where there is plenty of rain in spring and fall, plenty of NO RAIN all summer, and plenty of squooshy clay soil in my yard. In fact, although we have been here 4 years, and have a reasonable yard grown in (no trees, all grass), water still doesn't drain into the soil well in the rain, and it's very spongy ground. It may be unavoidable, but I'd like to try to avoid having 1/3 acre of mud. Will 2 runs that size rotated keep the wreckage to a minimum? How often would that number of chickens need to rotate between runs to keep them from turning to muck? I know I can plant annual rye or winter wheat between rotations to keep things growing for them. Any suggestions would be great!