First year Adelie penguin (Pygoscelis adeliae) chicks at breeding colony at Brown Bluff, Antarctica, Polar Regions

adelie penguin penguin chicks breeding colony antarctica brown bluff polar regions wildlife ice floe icy habitat first year birds huddle group behavior marine life animal behavior cold climate natural habitat conservation nesting survival sea ice penguin colony avian species ecosystem biodiversity ice landscape chick development feeding grounds marine ecosystem icy shores subantarctic polar fauna wildlife observation nature animal groups ecosystem monitoring environmental studies winter habitat ocean environment ecological balance icebergs juvenile animals social behavior penguin migration antarctic exploration