urt le ▁dove , ▁possibly ▁an ▁ext inct ▁sub species , ▁which ▁is ▁known ▁from ▁one ▁sub f oss il ▁hum er us ▁and ▁one ▁ul na . ▁The ▁sl ate - gre y ▁bird ▁or ▁the ▁ram iers , ▁respectively , ▁seem ▁to ▁be ▁the ▁birds ▁described ▁by ▁Bon te ko e . ▁What ▁the ▁remaining ▁form ▁- ▁the ▁tour ter elles ▁or ▁the ▁sl ate - gre y ▁p ige ons , ▁respectively ▁- ▁might ▁have ▁been ▁is ▁completely ▁un resol v able ▁at ▁this ▁time , ▁although ▁the ▁possibility ▁of ▁it ▁being ▁a ▁relative ▁of ▁the ▁Rod rig ues ▁p ige on ▁cannot ▁be ▁entirely ▁disc ount ed . ▁ ▁Ext inction ▁Since ▁the ▁Ré union ▁p ink ▁p ige on ▁was ▁only ▁mentioned ▁explicitly ▁by ▁Dub ois , ▁little ▁can ▁be ▁said ▁about ▁its ▁ext inction . ▁The ▁last ▁reports ▁of ▁native ▁p ige ons ▁were ▁by ▁P ère ▁Bernard in ▁in ▁ 1 6 8 7 ▁and ▁by ▁Guillaume ▁H ouss aye ▁in ▁ 1 6 8 9 , ▁although ▁the ▁A lect ro enas ▁may ▁have ▁existed ▁for ▁a ▁somewhat ▁longer ▁time . ▁Jean ▁Fe u ille y ▁in ▁ 1 7 0 5 ▁mentioned ▁that ▁all ▁native ▁p ige ons ▁were ▁ext inct ; ▁it ▁seems ▁likely ▁that ▁introduced ▁r ats ▁and ▁c ats , ▁combined ▁with ▁excess ive ▁hunting , ▁were ▁the ▁causes ▁of ▁the ▁birds ' ▁ext inction . ▁ ▁References ▁ ▁Further ▁reading ▁ ▁Roth sch ild , ▁Walter ▁( 1 9 0