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Ancient wildlife sculpture

South Island adzebill

Ngutu hahau, the world’s largest rail. Drawn, unplaced.

Proposed

On paper. Not yet decided.

A pen-and-ink cut-out drawing of a South Island adzebill beside toetoe, its skeleton drawn inside the silhouette.
South Island adzebill — ngutu hahau. The world’s largest rail.Trish Shirley

Where we are now

A drawing and a spot. The design is 1 m by 1 m, two birds slightly offset on a concrete plinth strengthened with box section.

What it becomes

Two birds on this ground with toetoe growing between them.

Why this matters

Five of the trail’s subjects are moa, and it would be easy to read the whole thing as a story about large flightless grazers. The adzebill is the correction, standing on the same hillside.

What needs to happen

1 of 6
  • Placement decided
  • Design decided
  • Council agreement
  • Funding guaranteed
  • Apex instructed and a due date agreed
  • Opening ceremony planned

The plant in the drawing is a real plant

The note on the drawing says the toetoe around this bird “would be real and not part of the sculpture”. It is a small line that says a great deal about how the two halves of this project fit together: the sculpture is designed with the planting already grown up around it.

In deep time

Aptornis defossor, ngutu hahau. An 80 cm, 18 kg predator with a razor-sharp beak and tiny, functionless wings — the world’s largest rail.

Connected to

Surveyed boundary

The shape on the map is the Trust’s own: planting blocks surveyed by Survey Waitaki in August 2025 and mapped in ArcGIS, or a layer exported from that map. The area and length quoted here are measured from it, and the block areas agree with the Trust’s own chart to better than 0.15%.

Not settled yet

A proposed position on a draft layout that is under review — both the spot and the subject at it may change. The species notes come from Trish Shirley’s research for the sculpture designs.

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