Northern giant petrel (Macronectes halli) threat display on the beach at Stromness, South Georgia, Southern Ocean, Polar Regions

macronectes halli threat display beach stromness south georgia southern ocean polar regions seabird wildlife bird behavior coastal environment avian ocean habitat natural behavior animal display feathers marine ecosystem shore rocks nature animal kingdom protection aggression wildlife observation fauna flight wingspan habitat coastal bird scavenger feeding behavior birdwatching biodiversity conservation ecosystems feeding natural habitat wild animal territory display behavior marine bird environment ecology coastal ecosystem antarctic region offshore bird species southern hemisphere petrel seabird behavior