niclandia says they were a different breed from south America. The combs are different which puts the blue egg shell gene at a different spot.
The breed used is hidden in the original cross notes. They were trying to keep a secret about how they were made I think.
Anyway, you can get two different types of blue egg shell genes from the cross. One associated with a pea comb and one that is not. They would be double blue too so making stable OEs from them would be easier.
the originals were a Chilean hen. the male died on the ship voyage back to the uk. They used the leghorn and other breeds to reproduce how the male looked then breed him to the chilean hens.
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