This is amazing to me. I have two EE. One lays an olive green egg and the other lays a light green. I thought once they lay green that is it. Well, I go in the coop the other day and there is the most beautiful BLUE egg! I was comparing all the eggs from the week and I am noticing there are many slight variations in color. Since then she is back to green and never laid a blue one again. But you have got to see this. This picture below shows the variations in color from only two hens. The blue one is on the top left pictured below.