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Id be willing to bet its something he is rubbing it on. Like when they clean after a meal? Now this may sound funny and Ive not seen it in birds buts its true with dogs, Certain dogs (esp golden retriver) and others with black noses....If they drink out of a polyurithane bowl or bucket (and some other plastics) they will lose the color in the skin of the nose. Yes it is true, and if you switch them to stainless or ceramic or rubber , eventually the color comes back. Does he have a plastic dish to eat from? Or the other may be rubbing it on a pumice or sandy perch or mineral perch??? Watch him closely...
Now my grey did develop a light area on his beak later (about a year) that is gone now but we thought it was because he also has rare white toes on a few tootsies,lol.
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"I believe in Christianity as I believe that the sun has risen: not only because I see it, but because by it I see everything else." -C.S. Lewis Calypso - Harlequin Macaw
Lizzy - Sulfur-crested Cockatoo
Buckeye and Charlie - African Greys
Willow - Blue-fronted Amazon
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