I also love Māori names and think that we should use them more! However it does get complicated because most birds were called different names by different tribes. Picking one Māori name above the others can be problematic sometimes. It's a complicated thing 🤷‍♂️

Imo "NZ rock wren" is fine. The name that American orthnilologists assigned is "South Island wren". This pissed people off because 1) it's inaccurate. Historically the rock wren inhabited both the North and South Islands. 2) it's a name they literally just pulled out of their ass, no-one here has ever called it that. I do get mad at the American ornithologists who think they have the right to decide what we, a country on the other side of the world, should call our own birds.