I just got to thinking...My LBrahmas lay the brown eggs of course. One day I had pulverized into tiny pieces a red cabbage and a little green cabbage and carrots to take out to the chickens. I have this one Brahma - Amelie who always laid eggs with little white polka dots on one end of the egg. I was glad because I like to try and recognize which chicken laid what egg. A couple of days later when I gathered eggs, the polka dots were no longer white on Amelie's eggs....they were PURPLE! That was months ago and the polka dots on her eggs are still purple. Does anybody know how such a thing could happen- I blamed the red (purple) cabbage, but I really don't know.