I have raised chickens for over twenty years, and I have never had a hen that does this. I have a Standard Silver Laced Wyandotte pullet that lays very different colored eggs. Sometimes the egg is a rich even shade of brown, no spots, and other days the egg is a much lighter shade of brown with dark brown spots all over it, much like a wild turkey egg. The eggs are shaped nearly identical, and there seems to be no pattern as to which color she will lay. She is the only hen in her pen, so both eggs have to be coming from her, unless I have the world's first laying rooster. Does anyone have any idea what may be causing this? I do rotate feeds every other day, but it does not seem to affect aany other hens. I feed a mixture of layer crumbles and corn one day, then a mixture of oats, wheat, and layer crumbles the next. She is completely healthy as far as I can tell. I was hoping to add some Black Wyandotte hens into that breeding pen, but I wanted to be able to identify the Silver Laced hen's eggs apart from the Black hens' eggs. It doesn't look like I will be able to do that at his point. Any insight would be appreciated.

Mark:
I see this type of egg shell from time to time. It is nothing to worry about. When the shell is added, usually it goes on very smoothly but sometimes you will see these spots that have a lot of pigment (that would normally go evenly around the entire shell) so up as little raised dots.
Again, I don't think this is anything to worry about, just another variation in an individual hen's system.

James