Ya, my Apps have the problem of thin shells( feeding a bit of oyster now has helped), and occasional broken eggs get eaten right away. only a wet spot in the grass nest. I clean ALL the residue out and replace the grass (Hay?) for nesting, as they arrange it themselves. They have 3 nests that THEY like, that have permanent golf balls, and they concentrate their laying on those nests. I also pick out the eggs, morning and evening, as I check the tractor coops for supplies and problems. Mom ( to the furrkids and feathers) is pretty picky about using dry wood chip bedding in all the houses for cleanliness. The tractors get moved avery other day in the least, to new forage.