not the exact 1800's book I was looking for but here. http://books.google.com/books?id=8m...#v=onepage&q=wild sumatra jungle fowl&f=falseNo..
Earth genetics just dont work that way, not even on recessive genes, the Blue found on Sumatras is the same andalusian blue found on just about every other chicken breed in the world, now I know Sumatras are not your normal chickens, Yet they still have to follow Mendelian's Laws, not only them, but every living organism alive.
so unless I'm missing something here, like a weird blue recessive gene, dont expect 20% blues from black to black mating.
It in this book specifically mention a Blue bird. But it does mention the white feathers, which are predominant in a Blue roosters tail. Alos note that other colors were FOUND but a few idiot idealistic men decided that black was best.
Sumatra's were in the wild NOT ALL BLACK. We did not create these other colors. They are natural to the breed.
SMH. Stubborn, stubborn. Reading history is a good thing