Fauna
Bird

Oahu Nukupu'u

Hemignathus lucidus

Also known as Oahu Nukupuu

The Oahu nukupu'u was an extraordinary Hawaiian honeycreeper celebrated for its remarkable, highly specialized bill. It used its short, straight lower mandible like a chisel to strip away bark, then probed crevices with its elongated, downcurved upper mandible to extract hidden beetle larvae. Forest clearance and introduced mosquito-borne avian diseases devastated the population, driving it to extinction by the late nineteenth century.

Forest BirdHoneycreeper
Oahu Nukupu'u reference
(c) Biodiversity Heritage Library, some rights reserved (CC BY) · cc-by
—observations
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ExtinctConservation statusIUCN Red List categoriesLCNTVUENCREWEXExtinctRed List categories, explained →
Key facts
Diet & preyWood-boring beetle larvae, Native spiders, Metrosideros polymorpha nectar
Predators
  • Black rat
  • Feral cat
  • Hawaiian hawk
ThreatsAvian malaria, invasive black rats, and widespread deforestation
HabitatsDense montane wet and mesic native forests
Life spanEstimated 7–10 years in the wild
Classification
  1. OrderPasseriformes
  2. FamilyFringillidae
  3. GenusHemignathus
  4. SpeciesHemignathus lucidus
Range & activity
Range data is not available yet.
Safe observation
Interaction riskLow
  1. Low
  2. Moderate
  3. High
  4. Very high
Why interaction risk is low
Extinct and safe to observe in historical museum collections.
Responsible observation
  • Museum Collections: Study preserved study skins in natural history museums to examine its bill morphology.
  • Historical Records: Consult nineteenth-century ornithological surveys for accounts of its living behavior.
  • Habitat Conservation: Support remaining native Hawaiian forest restoration to protect surviving forest birds.
Related species
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