No Macrons might be appropriate if the thing was known by its English name and we were giving it its Maori name as well for example the The New Zealand Pigeon or kerer  but the widespread English name for the species is Kakapo not Kkp I fully support using Maori words in English particularly when the words are nicer than the English words which they often are for birds and the promotion of te reo but WikiProject New Zealands insistence that Maori loanwords keep macrons seems inconsistent with general usage in NZ Also Wikiproject Birds avoids any diacritical marks following the convention set by the IOC world bird list except in the case of names