Do your hens free range? My Araucana's are absolutely, by FAR the worst birds I have ever had about finding out of the way, impossible to get to places to lay their eggs. They may be hiding them from you? Then there is my Spook, who lays an egg where ever it happens to plop out of her body. No kidding. I was throwing scratch one day and she was waddling around just like a penguin till an egg popped out right there in the middle of the scratching chicken mob. She never missed a beat - just kept foraging. I find her eggs on the ground in the middle of the lawn, on the floor of the coop, on top of the feed bins, etc......