I have 3 compost piles in various stages of decomposition. they free range during the day so they will climb on them and dig and scratch.. plus a couple of times a week I throw1/2 a wheelbarrow of compost right in the run. by the end of the day you usually cant tell where it is. they've scratched and went through it and mixed it with whats already in there. I built mine right in my garden so in the spring i'll take it apart (I made it to be able to be moved) put it off to one side.and plant my veggies where they were. I don't put any worms in it, they seem to like it the way it is, kitchen scrapes, leaves, hay. hope this helps