I don't have any hens available at the moment. Maybe by summer. I just sold out of all the girls I am not going to be using for breeding. Check with Ann of Birch Run Farm. She posted a page back I believe. She is the one with the ostrich as her avatar. I just bought a couple of duckwing hens from her.
Also I think Nadine has a hen or two for sale and she is closer to you then I am.
On the calculator, cross the Birchen x wildtype offspring back to the duckwing hens and you'll get some duckwings.
Birchen/ER/Crowwing is dominant to wildtype, so it doesn't express in the first generation. The offspring will be split ER/wildtype e+ and will produce duckwings if crossed back to each other or to the wildtype parent bird.
Sorry to change the topic.I would like to know if white ear lobes are correct.I am using a out dated standard and the club website does not say anything about ear lobe color.Just want to select for standard traits as my start is not up to standard yet. Jerry