Really enjoyed seeing his chicken yard! I did something similar in my run but it was just with the wood chips, indoor litter put out on the run, etc. Made the most wonderful soil for our gardens this spring. We dug out some of the greatest, worm-filled dirt you can imagine.
I know some folks throw their compost in the chicken yards but I haven't done it in my run since it's so small. We used to have a compost pile in the larger area that they run in but the chickens totally decimated it and you wouldn't even know there was compost there now! I am trying to think of a good way to make a compost area in the large range space in such a way that it is kept in a small area and we can actually get some compost from it fro ourselves

Maybe that isn't a big deal as the kennel pen has a great soil production.
Also interesting about the stuff they sprayed on the "organic" carrots. It's very frustrating that you can't trust the organic label to mean what it's supposed to mean.
And...
My chicken area doesn't stink either. Inside or out. I had a friend that hates animals come over once and I took her out to see how my husband had remodeled the hen shed inside. The first thing she said was, "It doesn't stink in here. Why doesn't it stink?"
I took that as a sign that I was doing something right - especially when THIS friend made that comment unsolicited!