I put wood chips, grass clippings, and leaves along with any materials that come out of my coop (hay from the nest boxes, pelleted bedding when it gets changed out) into my run and let my chickens do the work. When I'm ready to use it, Spring and Fall, I rake off the top layer and shovel out the black gold, it looks just like dark rich dirt. Is that in your run, or a pile? How long?
Once I clean all the old chips and manure out, I usually take it out away from the coupe and dump it out beyond the garden. In the summer the chickens will scratch in it and spread it out.