the mutations.
Like my friend, she had male: normal grey split bc and isabel.
and female: normal grey split for bc.
(well she didnt know they were splits)
and she breed them and she only got normal greys.
Until one day...

And the gave this pair to me.
I breed them and I got three chicks, all were black cheeks and
two of them were Isabel BC.
One of my fawn pied hens is split for BB.
I didnt know, until I breed her with one of my BB males,
And I got a Pheao

One of my males are split for CFW, he look like a NG,
but when I breed him with my fawn pied hen,
I got fawn CFW females.
So dont give up even though your pair is only normal greys

normal greys are also pretty.