I had a broody hen who's eggs thought died, turns out 5 of the 11 hatched and while she was waiting for the last 2 to hatch, she pushed out a dead rotting chick that quit developing possibly up to a week before. I took it out (even though she pecked me) and disposed of it and she managed to clean up the area pretty nicely. I added some extra straw in a corner and she managed to place extra under and around her...cleaned it all by herself