Should I bee concerned? My two red stars have been laying beautiful dark brown eggs since May. Yesterday one layed a very light, almost white egg. Today another whitish one but it had wrinkles and was elongated. Is this a sign of some kind that I have to worry about? They get layer mash, oyster shell is offered, and they get to roam the yard and find my compost pile that has crushed eggshell in it. Or is it just a phase and I'll get my brown eggs again?