Gentoo penguin (Pygoscelis papua) chicks covered with mud and guano on Cuverville Island, Antarctica, Southern Ocean, Polar Regions

gentoo penguin pygoscelis papua chicks mud guano cuverville island antarctica southern ocean polar regions wildlife nature seabirds juvenile nesting habitat adaptation feeding survival cold climate fur brown grey feathers antarctic environment animal behavior young birds seabird colony ecosystem biodiversity wetland rustic marine life camouflage grooming mother nature birdwatching avian natural habitat young wildlife companionship sibling nurturing wildlife conservation penguin colony environmental challenges beak cuteness