Good morning! My hens eggs have been perfect and steady but now they are steady and some are speckled. They look like someone sprayed them with that snow in a can stuff. It feels sort of etched. I don't know what chicken/chickens either. I only know its one of my newer girls who are all brown and white so go figure. Is this a sickness? Are they safe? Is it from the But-Al I recently started last weekend? Please help. Thanks, Cm.