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i just figured i didn't wing the genetic lotto.... the one real bircheren looking roo might still have blue recessive somewhere in him and if the splash hens are any use i can try.... otherwise i can recross him with my blue andulsians to try and bring the blue out. my 2 blue hens throw blue over 50% of the time and oddly enough the males are blacker and females more blue. just figured i could try and put more blue genes in.
I have noticed that the "blue birchen's" do not have leg feathering so i assume they are somewhere decended from the english import while Poirot is a real french copper marans.
Do you have how the blue gene works written down anywhere for reference? It will be something you will use a lot if you plan to work with him and get blues. I would definitely steer away from any outcrossing as you further will end up muddying the gene pool and will not have pure Marans. If your splash girl turns out well....crossing a black silver birchen to a splash marans will give you 100% blue...the blues will vary in how they exhibit the birchen however. It all depends what is behind the splash too, like what cross produced her... that kind of thing.
I hope I'm making sense. I'm paraphrasing
eh... there is no real 'recipe' i just figured my roosters are oddly recessive. i can cross them with any hen and get the hens color but with some of his influence (leg feathering, size). I have fun playing with hybrids and had a good solid red brahma line going till i got bored. brahma x silver wyndotte has interesting results... and turken crossed with anything is cool. the blues are my fav color.
I am now curious what that second marans rooster would be called....