I have 2 or more chickens laying very thinned shell eggs. I feed a quality layer food put out by Kent. I feed peas or other greens when they can't be free ranged. I put out egg shells and Oyster shell calcium. Whoever it is lays their eggs very early in the morning. It happens every day. All of my other eggs are always covered in egg. Would it be the five I rescued from an egg production plant?This is getting old.