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New Zealand giant crake

species of rail

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Record originEnglish Wikipedia
Text licenseCC BY-SA 4.0
Source revisionAug 11, 2025
Entity authorityQ135656080 ↗
Source-derived summary

The New Zealand giant crake or Hodgens’ Waterhen (Porzana hodgenorum) is an extinct rail species from New Zealand. Its name commemorates J. and R. Hodgen who were owners of the Pyramid Valley swamp where the holotype was discovered. It reached a weight of 280 g and its wings were so reduced that it was unable to fly. It occupied a wide range of habitats, including open forest and grassland along riverbanks.

History

The species was first described by Ron Scarlett as Rallus hodgeni in 1955. Storrs L. Olson transferred it into the genus Gallinula, subgenus Tribonyx, in 1975 and changed its specific epithet to hodgenorum in 1986. It has since been thought to have been closely related to the black-tailed native-hen (Tribonyx ventralis) and the Tasmanian native-hen (Tribonyx mortierii), being placed in the same genus. In a 2025 analysis using a molecular phylogeny, it was found that the species is a member of the crake genus Porzana, with the analysis recovering it as sister to the Australian crake (Porzana fluminea).

It is only known from subfossil material of which the youngest Māori midden record is from the 18th century. Hundreds of bones have been unearthed at Pyramid Valley in the South Island, at Lake Poukawa in the North Island, and several other sites, indicating that it was once widespread in New Zealand except on the Chatham Islands.

Editorial summary

Begin with the source’s own compact description: “New Zealand giant crake” is species of rail. The dossier treats that line as a proposition to test through Zealand, giant and crake, not as a finished interpretation.

Editorial reviewUseful for establishing the present vocabulary of the subject while preserving a route back to the evidence on which that vocabulary rests. The current lead gives the account dated anchors—1955, 1975, 1986, 2025—that can be checked directly. The selected authority fields contribute no independent date. For this dossier, Zealand, giant and crake is the immediate research focus.
Editorial analysis

Why this record matters

The phrase “species of rail” supplies a clear boundary for inquiry. It also exposes the unanswered questions: who defined that boundary, when it became stable and which sources sit outside it.

Evidence profile

Datasets, specimens, observations and peer-reviewed methods provide the appropriate test for the technical claims summarized here. The source revision retrieved here is dated Aug 11, 2025. The linked authority identifier is Q135656080. None of the 0 selected statements returned an explicit reference. The first chronological checks are 1955, 1975, 1986 and 2025.

Critical limits

Scientific names, classifications and consensus can change while older terminology persists in catalogues and historical literature. The lead is largely declarative, so disagreement and counter-evidence require a deliberate search beyond the opening account. Authority statements aid reconciliation but still require their own references, qualifiers and ranks to be checked.

How to read it

Check terminology, classification and the date of the cited evidence. Scientific names and technical consensus can change while older records retain historical value.

Best used for
  • Current terminology
  • Classification context
  • Finding cited technical literature
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Primary datasets, specimen catalogues, standards bodies and the most recent peer-reviewed literature.

Three-step research path

  1. Establish the record: confirm the title “New Zealand giant crake”, its source revision and the description used here.
  2. Expand the search: follow New Zealand giant crake primary sources, New Zealand giant crake archive and Zealand research across catalogues and specialist indexes.
  3. Test the account: compare the strongest cited source with the responsible institution’s current record and note any disagreement.

Questions for further research

  1. Which source most directly establishes the central claim about “New Zealand giant crake”?
  2. Is the terminology current, historical or disputed?
  3. Which observation, specimen, dataset or publication supports the account?
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Source & attribution

This entry incorporates text from “New Zealand giant crake” on English Wikipedia. Contributors are listed in the page history. Text is available under the Creative Commons Attribution-ShareAlike 4.0 License. Selected authority identifiers and statements are retrieved from Wikidata under CC0; their references and qualifiers remain part of the verification path.