Some of the eggs, not all, are less than perfectly clean. I want every egg to be perfectly clean. If a little poo touches the egg it is permantently stained. THis is a new problem and I'm not sure why this is happening. Too much mud in the area as the rainy season has arrived? Poo is accumulating on the access board in front of the nest box--why is the hen dumping there? I've checked in the nestbox and it looks clean. I remove an occassional poo. And I recently pulled out the straw and added 1" of clean shavings underneath hoping to fix the situation. No change.