I have been using golf balls & ping pong balls in the nesting boxes to encourage Edie to lay in the nesting boxes. Its worked pretty well. She has only laid 2 times outside the nesting box.grr stupid leghorn. How do you break a chicken from laying out side the coop. We opened the coop up at 11 and the dang bird beelines it straight to the barn and is moveing around in an open crate that we found the other eggs in. I went to pick her up and she got by me. I need a run this is getting old. I think my double yolker from her that we found in barn is from her skipping a day in the coop then next day laying in the barn. Its wierd where she lays in the box is V'ed not flat and no straw or anything in it maybe i need a V box in my coop hmm. Or more nest boxes i have 4 boxes and only like 8 layers atm.
Perhaps you need to grab her before letting the others out and keep her in the coop till she lays for several days in the nesting boxes?
I wouldn't build a run to confine them if you can sucessfully allow them to free range. They def get better benefits & eat less feed when you can free range them