Chicken5555
Songster
I do cuckoo olive eggers. The mother appeared to be some wheaten colored easter egger. The father was a Golden cuckoo marans. Mine are ER based, so the offspring are ER/EWh and look cuckoo. If you have blue, you should be split for blue barred and black barred. They don't really look barred, just lightly when the blue is in the mix.
ER/Ewh hen:
I'm also playing around with blue golden cuckoos, this a a cockeral. The barring is vague, but seems inhibited by the blue gene.
Blue golden cuckoo marans:
Fascinating. Thank you for sharing! I wasn't even thinking about the Barred Rock being black at the E locus but what you said reminded me of that. I might want to look at other breeds for my rooster. Your olive eggers are lovely by the way.