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

gentoo penguin penguin chicks mud guano cuverville island antarctica southern ocean polar regions wildlife animal behavior cute nature chicks habitat rocky terrain playful orange beaks feathered nesting colony seabirds marine environment young flightless cold breeding aggregation ecology mammal coastal birds antarctic ecosystem juvenile protection species adaptation natural behavior outdoor fur survival diversity landscape snowy ecosystem health conservation habitat loss study observation