I posted today a photo of a marans rooster and hen with that pattern ,both where from a show in France few years back ,in this thread . last page 2012
https://www.backyardchickens.com/threads/international-black-copper-marans-thread-breeding-to-the-sop.1122465/.
how far are in your Blue...
I can see your Brahma hen is silver based . that make sense . her son with a golden base rooster will have both silver and gold plus the autossomal red .
she is stunning .I think I need to get some Brahma chooks , love the colour too . I have been trying to breed marans variety with this...
do you know the parent ?
here one of my rooster hatched last yeas .his father is a Blue silver cuckoo marans and his mother is Blue copper marans , so he is a F1 ( mean a first cross )
chooks man
cockerels when not pure they can carry both gold and silver S/s+ plus the Autossomal red genes . the autossomal red will affect the chest and shoulder coloration .
so we can have a cockerel with a pure sex linked silver gene S/S and Autossomal red . this cockerels will have pure silver hackle...
love the way you manage to organise your self to get every thing done .
Bravo . we should have more peoples like you in this planet . that will be great .
Chooks man