I have a few . They will become more common due to Crested Cream Legbar and Isbar being used in making EE . Both breeds have single comb and the blue egg gene . I have CCL mixes now .
So you have CCL mixes that have a single comb and lay blue/green eggs? I would love to see pics of them. You can pm them to me if you want to. I currently have my six EE hens for sale who lay really pretty blue eggs just because I just don't like a pea comb......or rather I just really, really really love a single comb.

Maryellen21, can you send pics of your single comb EE's too? Do you know if they have CCL or Isbar in them?