Peacock feathers are supposed to produce colours by surface structures modulating the light (in addition to the usual absorption/reflection mechanism)... https://en.wikipedia.org/wiki/Structural_coloration
But how does that explain the existence of an albino peacock? https://www.favrify.com/wp-content/uploads/2015/02/peacock1.jpg
Does albino mutation change the physical structure of feathers in addition to the lack of colour pigments?
Does anyone have a close comparison of the physical difference of the albino vs coloured peacock feathers?