Adelie penguin (Pygoscelis adeliae), at breeding colony at Brown Bluff on the eastern side of the Antarctic Peninsula, Antarctica, Polar Regions

adelie penguin pygoscelis adeliae breeding colony brown bluff antarctic peninsula antarctica polar regions ice wildlife seabird jump migration southern ocean colony winter snow ice formations habitat natural behavior flightless bird marine life geology biodiversity ecosystem cold climate arctic penguin behavior social structure nesting feeding penguin population conservation status antarctic landscape animal habitat cold weather evolution seasonal changes penguin chicks habitat protection species endemic species wildlife research ground nesting ocean currents polar ice global warming habitat loss frozen environment behavioral studies avian species