le ▁des ▁P ing ou ins ▁in ▁the ▁Cro zet ▁Islands ▁in ▁the ▁Indian ▁Ocean ▁and ▁the ▁B ount y ▁Islands ▁and ▁The ▁Sn ares ▁to ▁the ▁south ▁of ▁New ▁Zealand , ▁The ▁Py ram id , ▁and ▁Fort y - F ours ▁Island . ▁ ▁At ▁sea ▁they ▁range ▁from ▁South ▁Africa ▁across ▁to ▁Australia ▁and ▁as ▁far ▁east ▁as ▁the ▁coast ▁of ▁South ▁America . ▁ ▁Conserv ation ▁The ▁IU CN ▁class ifies ▁this ▁species ▁as ▁vulner able ▁with ▁long line ▁fish eries ▁and ▁tra w lers ▁responsible ▁for ▁small ▁numbers ▁of ▁death s , ▁although ▁tra w lers ▁are ▁responsible ▁for ▁more ▁than ▁half ▁of ▁those ▁killed . ▁The ▁world ▁population ▁is ▁currently ▁estimated ▁to ▁be ▁around ▁ 6 1 , 5 0 0 ▁birds ▁in ▁ 1 9 9 8 , ▁which ▁suggests ▁a ▁decl ine ▁in ▁the ▁species ▁since ▁earlier ▁studies ▁( although ▁differences ▁in ▁methods ▁make ▁direct ▁compar isons ▁difficult ). ▁There ▁are ▁ 3 0 , 7 5 0 ▁pairs , ▁in ▁ 1 9 9 8 , ▁on ▁the ▁B ount y ▁Islands , ▁compared ▁to ▁ 7 6 , 0 0 0 ▁pairs ▁in ▁ 1 9 7 8 . ▁There ▁were ▁ 6 5 0 ▁pairs ▁on ▁the ▁Sn ares ▁Islands , ▁and ▁ 4 ▁pairs ▁were ▁recorded ▁on ▁Î le ▁des ▁P ing ou ins ▁in ▁the ▁Cro zet ▁Islands . ▁Single ▁ch icks ▁have ▁been ▁observed ▁on ▁The ▁Py ram id ▁and ▁Fort y - f ours ▁Island ▁in ▁ 2