Herald Petrel Herald Petrel Pterodroma heraldica Nov 13 2018. Off Oeno Island. Nov 13 2018. Off Oeno Island. Nov 13 2018. Off Oeno Island. Nov 13 2018. Off Oeno Island. Nov 13 2018. Off Oeno Island. Nov 13 2018. Off Oeno Island. Nov 11 2018. Off Henderson Island. Nov 11 2018. Off Henderson Island. Nov 11 2018. Off Henderson Island. Nov 11 2018. Off Henderson Island. Nov 11 2018. Off Henderson Island. Nov 12 2018. Oeno Island. Nov 12 2018. Oeno Island. Nov 12 2018. Oeno Island.