▁that ▁the ▁Liverpool ▁spec imen ▁was ▁a ▁ju ven ile ▁from ▁Lord ▁How e ▁Island ▁or ▁New ▁Zealand , ▁and ▁continued ▁to ▁believe ▁that ▁the ▁Vienna ▁spec imen ▁was ▁from ▁Nor folk ▁Island . ▁Despite ▁naming ▁the ▁new ▁species , ▁Row ley ▁considered ▁the ▁possibility ▁that ▁P . ▁stan ley i ▁was ▁an ▁alb ino ▁Austral as ian ▁sw am phen ▁and ▁considered ▁the ▁Vienna ▁bird ▁more ▁similar ▁to ▁the ▁tak ah ē . ▁In ▁ 1 9 0 1 , ▁the ▁orn ith ologist ▁Henry ▁O gg ▁For bes ▁had ▁the ▁Liverpool ▁spec imen ▁dis mount ed ▁so ▁he ▁could ▁examine ▁it ▁for ▁damage . ▁For bes ▁found ▁it ▁similar ▁enough ▁to ▁the ▁Vienna ▁spec imen ▁to ▁belong ▁to ▁the ▁same ▁species , ▁N . ▁al ba . ▁The ▁zo ologist ▁Walter ▁Roth sch ild ▁considered ▁the ▁two ▁species ▁distinct ▁from ▁each ▁other ▁in ▁ 1 9 0 7 , ▁but ▁placed ▁them ▁both ▁in ▁the ▁genus ▁Not orn is . ▁Roth sch ild ▁thought ▁that ▁the ▁image ▁published ▁by ▁Phill ip ▁in ▁ 1 7 8 9 ▁dep icted ▁N . ▁stan ley i ▁from ▁Lord ▁How e ▁Island , ▁and ▁the ▁image ▁published ▁by ▁White ▁in ▁ 1 7 9 0 ▁showed ▁N . ▁al ba ▁from ▁Nor folk ▁Island . ▁He ▁disag re ed ▁that ▁the ▁spec im ens ▁were ▁al bin os , ▁thinking ▁instead ▁that ▁they ▁were ▁evol ving ▁into ▁a ▁white ▁species . ▁Roth sch ild ▁published ▁an ▁illustr ation ▁of ▁N . ▁al ba ▁by