First, I KNOW these are PURE Ameraucanas. I hatched all but one from light blue eggs from a breeder, not hatchery. One pullet is from a local breeder who I KNOW does not have a mixed flock. So, why would my Ameraucanas who are just starting to lay or resume laying, be putting out a greenish egg? I am totally stumped. Even my hen who laid a light blue all last year is laying a more greenish egg. Is there an explanation? Thanks.