A leucistic Adelie penguin (Pygoscelis adeliae) adult feeding its "normal" colored chicks on Devil Island near the Antarctic Peninsula

bird birds adult adelie penguins pygoscelis adeliae devil island antarctic peninsula flightless seabird antarctica antarctic pygoscelidae nobody small group small groups social group social groups group groups leucistic white colourless rare unusual lack of melanin colouration discolouration feed feeding chick chicks young juvenile parent parenting parental melanin