That is interesting Runawaylobster...... unfortunately , I do not have the parent. I bought the chicks from a fellow in Dublin Ga. Beautiful birds.... but I never did see the eggs themselves... And I think he got out of the sport because I saw the parent birds for sale about a month later and I should have bought them, but I always knew I was only really gonna be able to keep one Rooster. (I had 14 chicks and 10 roosters) I could have used the two hens to mate to the son. That would do it no?... Right now, there is nothing that I can see to cross back to unless I hatch some of these RIR looking eggs.. I have a seperate line of some Blue coppers. (hens only now). I gave the rooster to a friend of mine. He is gonna give me a BC hen that lays a dark egg... I was pinning my plan B on that... (Plan A was my hope that the eggs from my three Black Copper hens will get darker but they better start soon eh?). Is it possible that they just lay eggs that look like Rhode Island Red eggs.... ?
What is your strategy? What are you working with? I guess you have the Red and Brown Marans.... the Black Coppers? I am very experienced with birds in general and chickens in particular, however I have only ever had Rhode Island Reds and these Marans have more targets to shoot for as far as conformation. Right now I have 15 Blue Copper hen/rooster eggs in my incubator and I candled them and they seem to be good so far.... my blues lay a much darker egg than my blacks, but to be fair, the blacks have not yet laid but an egg or two. If I get a couple of blacks out of that clutch, it would be an outcross again. Maybe mate any black rooster if I get one, back to the blue mother?