I have an a question. I have the following breeds of young hens. White Rocks, Barred rocks, Red Stars, Buff orpingtons and Columbian Wyandottes. One or two of these hens lays a very pale, almost white, rather small egg. Which breed could it be. I know it is not the Red Stars. These are very undesirable and I would get rid of the breed doing this if I knew.