Coloured and albino peacocks
I need a few pictures for references to do some more drawings/paintings so I've decided to place them here. The guy birds have the brilliant colours and tails and the hens are rather plainer - hmmm just like the body decorations on the men and women in Papua New Guinea.
Anyway, there's apparently superstitions regarding these birds I guess because of the eyes in the tail feathers and the ability to change colours. The colour of a peacock feather is caused by its complex structure and changes with the angle of incident light.
The white colour of an albino peacock is due to the missing black melanine pigment. The usual rich colours of the peacock are seen because black pigment which absorbs most of the incident light, allowing us to see only the interference colours. In the albino peacock, the interference is still happening, but the effect is entirely washed out by the abundance of white light. The "eyes" of the tail feathers are clear, not coloured.
W. (with a bit of help from google search friends!)