I have shavings in their nest boxes, but they are constantly moving them to bare wood. So far, Ive gotten two cracked eggs, and Im wondering if its them laying on the hard wood? Any suggestions? Ive tried adding more shavings but they moved them! could I put some straw down and then shavings maybe? to make a soft layer not as easily moved? Or something else? Im going to scramble these up for them today. Maybe that is their goal!