Olive Hatching Eggs

We have multi-generations of Olive Eggers.  We have F1, BC1, BC2 and BC3.  Our F1 olive eggers are created by using Black Copper Marans roosters over Cream Legbar hens.  These F1 olive eggers are sex-linked.  We also have F1, BC1, BC2 and BC3 olive eggers.  Most of these hens are crossed back to Black Copper Marans roosters.  I do have a few Olive Egger hens under a Cream Legbar rooster and have a few F1 olive eggs that will be brown, because they are from a Black Copper Marans hen under a Cream Legbar rooster.