The chicken or the egg? Pretty sure in MC it is the chicken but that isn't really the point.
Is there a document that explains chickens, eggs, and how they work? I want a chicken that lays a different type of egg without replacing the original chickens.
Ideally it would be cool if I could have the vanilla chicken lay both types of eggs, but I have had no luck so far, so a second type of chicken that lays a different egg would be fine too.