I'm on the lookout for some really nice Black Silkie eggs. While browsing Ebay, I saw an auction (that I don't want to bid on) advertising "12 Show Quality Assorted Bearded Silkie Eggs". Obviously that in itself is a far-fetched claim, as no egg is show quality and nobody can breed 100% show quality birds. The following line says that they are from a mixed colour flock. Is it possible to ever get a show quality bird from a mixed colour flock? Does this apply to any breed?