September 14, 2017 The Chasm of Doom September 14, 2017/ Abby McBride Crossing the Chasm of Doom: must reach the storm petrel colony before nightfall (when thousands of White-faced Storm Petrels will whirl in, fluttering and squeaking, for a night of courtship on the cliffs) A post shared by Abby McBride (@sketchbiologist) on Sep 15, 2017 at 4:36am PDT On Burgess Island in New Zealand's Hauraki Gulf.