Just as a general response to this question, which gets asked a lot, make sure your hens aren't hiding them. I have hens who fly out of their field enclosure, lay eggs in the bushes, then fly back in for the food.
Also, to be absolutely sure it's not nutrition related, have free choice calcium available to hens. I once kept a crop of hens a little past point-of-lay because the field coop wasn't finished yet. I had them on homemade pullet developer (low calcium). A day after switching to laying ration, they started dropping eggs like all at once.
Also, to be absolutely sure it's not nutrition related, have free choice calcium available to hens. I once kept a crop of hens a little past point-of-lay because the field coop wasn't finished yet. I had them on homemade pullet developer (low calcium). A day after switching to laying ration, they started dropping eggs like all at once.