How can I "make" an olive egger?

[Emmaloveschickens9156]

BCM x Ameracaua or cream leg are or any (purebred or homozygous for blue egg laying gene) blue egg laying breed.

 

[NatJ]

BCM x Ameracaua or cream leg are or any (purebred or homozygous for blue egg laying gene) blue egg laying breed.

If you want all the daughters to lay olive or green, yes that works well.

Chickens that are heterozygous for the blue egg gene can also be used, if you are willing to accept that half of their daughters will lay brown eggs and only half lay olive or green. (Handy to know if you don't have access to homozygotes, or don't have an easy way to identify them.)