Black copper marans x Cuckoo marans

[susanbird]

I bred my BCM roo to a Cuckoo Marans hen and as predicted the Cuckoo was a cockerel and the blacks are hens. My question, Will the Cuckoo cockerel bred to a Cuckoo hen now give all Cuckoo chicks?

 

[TheNuttyChick]

Good question, I was wondering what would happen if a BCM roo & a Cuckoo hen were mixed. I'm too new to answer the chick question, though.​

 

[nicalandia]

I bred my BCM roo to a Cuckoo Marans hen and as predicted the Cuckoo was a cockerel and the blacks are hens. My question, Will the Cuckoo cockerel bred to a Cuckoo hen now give all Cuckoo chicks?

Only 50% of the girls because he is heterozygous for the sex linked barring gene... all the boys will be barred

 

[RoosterRiot]

So you can make Black Sex Link Marans?