yellowing in white peafowl

[pedda munnangi]

if a white and or spalding white peafowl especially males show up some yellowing both on the neck , saddle and upper wings, is that a kind of a disorder ? or beginning of some kind of sickness or is it just that he does not have enough exposure to sunlight. Can somebody post some pictures.? One day I would like to see an yellow peafowl.

 

[casportpony]

I read somewhere that this can happen when birds eat lots of corn, but have no idea how true it is.

Edit: I think this is what I found before:​

From - http://chemistry.about.com/od/howthingswork/f/why-are-flamingos-pink.htm
Question: Why Are Flamingos Pink?
Have you ever wondered why flamingos are pink or orange? You've probably heard it has something to do with what flamingos eat, but do you know what exactly it is that produces the color?
Answer: Flamingos are pink or orange or white depending on what they eat. Flamingos eat algae and crustaceans that contain pigments called carotenoids. For the most part, these pigments are found in the brine shrimp and blue-green algae that the birds eat. Enzymes in the liver break down the carotenoids into the pink and orange pigment molecules deposited in the feathers, bill, and legs of the flamingos. Flamingos that eat mostly algae are more deeply colored than birds that eat the small animals that feed off of algae. Captive flamingos are feed a special diet that includes prawns (a pigmented crustacean) or additives such as beta-carotene or canthaxanthin, otherwise they would be white or pale pink. Young flamingos have gray plumage that changes color according to their diet.
People eat foods containing carotenoids, too. Examples include beta-carotene in carrots and lycopene in watermelon, but most people do not eat enough of these compounds to affect their skin color

 

[Dany12]

Pedda, we need a picture !
I know only that kind of yellow !

 

[Yoda]

Dany,
Is that from corn? I never seen it effect the train before. My whites have yellow faces and yellow tint to the neck, back and shoulder areas kinda like a yellow black shoulder LOL It fades as breeding season approaches cause I stop giving corn in the food. I just stopped yesterday with the corn LOL

 

[zazouse]

Pedda, we need a picture !
I know only that kind of yellow !

I have seen this in my peking ducks , i believe the high corn content in the flock raiser i was feeding them caused it cause once i cut out the feed and they molted they wern't yellow anymore.