Adult gentoo penguin (Pygoscelis papua), with very small white ocular patch at Brown Bluff near the Antarctica, Polar Regions

adult penguin gentoo penguin pygoscelis papua brown bluff antarctica ocular patch polar regions wildlife marine bird antarctic ecosystem seabird nature avian fauna cold environment habitat ice snow orange beak feathers profile penguin colony conservation breeding male penguin female penguin behavior penguin characteristics natural habitat coastal habitat marine environment biodiversity animal behavior flightless bird nesting survival climate polar habitat ecological niche penguin species cold climate wildlife observation penguin migration feeding habits antarctic exploration research ecosystem balance penguin population arctic sub antarctic