So I've had Coturnix for about a year now. They are all laying great and seem healthy, but today one of them laid a GREEN egg. It is so green I almost would have thought someone colored it if I didn't know better. I don't really mind if they lay a green egg every once in awhile, but I'm pretty sure green quail eggs are not normal. Is this a sign of a health problem? Does anyone know why the egg is green? They get game bird feed, bird seed, and grit.