I've got a question for (hopefully) some of you seasoned BYC PR members. I had two silver penciled rock cock birds, from completely unrelated bloodlines. The larger boy (and the boy I'm using) has very "white" white - very crisp & clean looking. He is now almost 3 yrs. old, and still is very white in the white parts of his feathering. The other boy was a year younger, was the beta roo, and his white feathering turned dingy yellow. They both were fed the exact same diet and treated exactly the same - the only difference is that the smaller boy was the beta. Is it possible that the dingy whiteness is simply due to him being of a different bloodline? I ended up culling the smaller/dingy feathered boy as I'm battling size in that breed anyway, and he was a full 2# lighter than my original boy. But, it's really been bothering me about this whole feather color thing, and so I thought I'd ask. Thanks!