since you work on egg colors, can I ask if they will produce olive eggs on the first cross?
I have a chick who hatched from a green egg, has muffs and a beard (EE) and I know for certain her daddy was a lavender copper marans. So I'm really hoping she lays me an olive egg in a few months
BTW, is lavender the correct color? Or should it be blue?
I think you mean blue copper. I crossed Black Copper Marans male over Black Ameraucana last year. She was not an EE, she was pure Ameraucana and laid nice blue eggs. The crossed birds lay beautiful olive eggs.