Marine & apparently pelagic. Nests on slopes of scree,rocky shores,lava flows.sometimes with tussock grass,and normallynot far from coast.Offshore feeder.
"Broadly Augusr-March,depending on locality and varying slightly from year to year"
Pre-moult period at sea 20-35 days. Birds remain at sea ca 6 months from April-May to September-October depending on location,after completion of moult and before start of subsequent breeding season.Population of Falklands apparently moves to coastal Argentina,occurring north to 35°S