Huia
Heteralocha acutirostris (Gould, 1837)
The huia was a New Zealand wattlebird extinct after the last confirmed sighting in 1907, famous for extreme sexual bill dimorphism; forest clearance, introduced predators and collecting for feathers erased a species found nowhere else on Earth.
Updated 25 July 2026
- Last confirmed sighting
- 1907
- Range
- North Island, New Zealand only
- Famous trait
- Strongest sexual bill dimorphism of any bird
- Family
- Callaeidae (New Zealand wattlebirds)
- Drivers
- Habitat loss, introduced predators, collecting
- Living relatives
- Kōkako and saddleback — other Callaeidae
The huia is remembered for a bill difference so extreme that males and females look like different species in profile: the male's stout and chiselling, the female's long and curved for probing. They were North Island forest birds, already scarce when European settlement accelerated. Tail feathers became status objects; collectors paid for skins; rats, stoats and cats reached the understorey; axes took the trees. The last confirmed sighting was in 1907. New Zealand has lost many endemic birds; the huia is the one whose tool-kit of two bill shapes still stops people mid-sentence.
Key facts at a glance
- The huia's male and female bills differ more than those of any other living or recently extinct bird.
- The last confirmed sighting was in 1907 on New Zealand's North Island.
- Introduced mammals and forest clearance were decisive; collecting for feathers added pressure to a specialised endemic.
- New Zealand's remaining endemic birds survive mainly where predators are controlled or islands are cleared of them.
- The kākāpō recovery shows intensive management can reverse island-bird collapse when enough individuals remain.
- Once a low-density forest specialist is gone, the bill morphology that made it famous exists only in museum drawers.
Two bills, one pair
Huia pairs are thought to have foraged cooperatively: males chiselling into rotting wood, females probing the openings. Whether that division was as neat as later storytelling claims is debated, but the anatomical difference is not. No other bird shows such extreme sexual bill dimorphism. That specialisation may have made the species efficient in intact forest and brittle when forest structure and invertebrate prey changed under human pressure.
Feathers, rats and axes
Māori traditionally valued huia feathers; colonial fashion and specimen collecting intensified take in the nineteenth century. At the same time, mustelids and rats — introduced to control rabbits or arriving with ships — entered forest that had evolved without mammalian predators. Birds that nested in cavities or foraged on the ground paid first. Forest clearance removed the rest. By 1907 confirmed birds were gone; searches afterward returned rumour.
Why New Zealand endemics still tip over
The huia's pressures never left the country. Stoats, rats and cats still limit forest birds; habitat is still fragmented. Species such as the kākāpō persist only because every individual is managed on predator-free islands. The huia is the finished version of that story — the endemic that ran out of islands and out of time before the modern toolkit existed.
Where it lived
North Island, New Zealand — endemic forest bird
The last one
Last confirmed sighting in 1907; later reports never verified with specimens
What caused it
- 1 Clearance of native forest for farms and timber
- 2 Introduced mammalian predators — rats, stoats, cats
- 3 Collecting for skins and tail feathers prized in fashion and ceremony
- 4 Naturally low density and specialised feeding that made losses hard to replace
What this extinction teaches
Island forest birds with specialised ecology collapse when predators and clearance arrive together, and collecting can finish what habitat loss starts. New Zealand's living endemics survive where those pressures are actively removed — the work the huia never received in time.
Still here — for now
Still facing the same pressure: Kākāpō
Another New Zealand endemic forest bird reduced to a handful of individuals by introduced predators — recovered only through intensive island management the huia never got.
IUCN status: Critically Endangered
Did you know
Huia pairs were so often described as lifelong that Victorian writers treated them as emblems of fidelity — then collected them in numbers that helped end the species that inspired the metaphor.
Huia: frequently asked questions
When did the huia go extinct?
Why were huia bills different in males and females?
What killed the huia?
Are there any huia left?
Could the huia be brought back from DNA?
Sources
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