light brown king penguins with melanism on south georgia. a genetic mutation causes unusual brown plumage colouration.

bird animal beak wildlife seabird waterbird gull wing zoo shorebird sea mammal ducks waterfowl duck heron rare sight: light brown king penguins melanism south georgia genetic mutation causes unusual plumage colouration amazing eye face photography portrait antarctica aptenodytes patagonicus beauty nature bird black brown close up detail colour dark emperor penguin fascinating genetics impressive incredible k?????????? ??????? melanin melanism mutation overproduction pigmentation plumage rare georgia stock photo unique unusual water wild wildlife wonderful