Chatham rail
It was endemic to Chatham , Mangere and Pitt Islands , in the Chatham archipelago of New Zealand . 
<triplet> Chatham <subj> Chatham archipelago <obj> part of <triplet> Mangere <subj> Chatham archipelago <obj> part of <triplet> Pitt Island <subj> Chatham archipelago <obj> part of <subj> New Zealand <obj> country <triplet> Chatham archipelago <subj> Chatham <obj> has part <subj> New Zealand <obj> country