Also - it is most likely that these are calcium speckles - and I'm not concerned - just curious. As you can tell, I'm a 'newbie' - but in my study of chickens, I learned that the egg is built up in stages as it moves along through the chicken. After the yoke and white is made, the white calcium is put on, which forms the shell. Then as THE VERY LAST STAGE, the thin layer of pigment is applied. So - the big question remains: How do calcium spots get onto the eggshell on top of the pigment layer? Where do they come from? What part of the chicken does this?