Yellow GCM?

[muckmuck]

The four chicks below hatched out last week, the bottom three are obviously GCM. What about the top yellow one? It came out of a dark brown egg that was supposed to be a GCM.

Thanks, Max

 

[ramirezframing]

don't know about the cuckoo coloration in marans, but in the black copper color you can have a white pop up every now and than or a brichen, even with all parents being black copper


edit to add theres a marans thread in the breeds section that you can ask about this in, they might know