I didn't find specific answers, but you may find them in these sites.
http://www.google.com/#q=albino+peacocks
how many albino peacocks are there and where they ever hunted by hunters?
2 answers
I couldn't find an aswer to your question but I found some very interesting info on the "Albino" Peacock.
6. There are all-white peafowl.
Thanks to selective breeding, it’s common for captive peafowl to buck the iridescent trend for all white feathers. This is called leucism, and it’s due to a genetic mutation that causes loss of pigmentation. These peafowl are often mistaken for being albino, but instead of having red eyes, animals with leucism retain their normal eye color.
6. There are all-white peafowl.
Thanks to selective breeding, it’s common for captive peafowl to buck the iridescent trend for all white feathers. This is called leucism, and it’s due to a genetic mutation that causes loss of pigmentation. These peafowl are often mistaken for being albino, but instead of having red eyes, animals with leucism retain their normal eye color.