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Hemignathus
Maui nukupuʻu (Hemignathus affinis)
Scientific classification
Domain:	Eukaryota
Kingdom:	Animalia
Phylum:	Chordata
Class:	Aves
Order:	Passeriformes
Family:	Fringillidae
Subfamily:	Carduelinae
Genus:	Hemignathus Lichtenstein, MHC, 1839
Type species
Hemignathus lucidus M.H.C. Lichtenstein, 1839
Species
See text

Hemignathus is a genus of Hawaiian honeycreepers in the subfamily Carduelinae of the family Fringillidae. All species are endemic to Hawaii.

Extinctions

Many of its species became extinct during the 19th and 20th centuries due to a combination of habitat destruction, introduced predators, and most importantly mosquito-borne diseases. The ʻakiapōlāʻau (Hemignathus wilsoni) may be the last surviving species in the genus.

One species, the giant nukupu'u (Hemignathus vorpalis), is known only from fossils, and became extinct in prehistoric times when Polynesian settlers deforested the lowlands for agriculture.

Taxonomy

There are 5 species in this genus, 4 of which are extinct or possibly extinct:

• Maui nukupuʻu, Hemignathus affinis - critically endangered or extinct, debated 1896 or 1990s
• Kauaʻi nukupuʻu, Hemignathus hanapepe - critically endangered or extinct, debated 1899 or 1990s
• Oʻahu nukupuʻu, Hemignathus lucidus - extinct, 1800s
• Giant nukupuʻu, Hemignathus vorpalis - extinct, Holocene
• ʻAkiapolaʻau, Hemignathus wilsoni

References

1. "Fringillidae". aviansystematics.org. The Trust for Avian Systematics. Retrieved 2023-07-16.
2. BirdLife International (2016). "Hemignathus affinis". IUCN Red List of Threatened Species. 2016: e.T103823664A104234257. doi:10.2305/IUCN.UK.2016-3.RLTS.T103823664A104234257.en. Retrieved 15 April 2023.
3. BirdLife International (2018). "Hemignathus hanapepe". IUCN Red List of Threatened Species. 2018: e.T103823616A125584125. doi:10.2305/IUCN.UK.2018-2.RLTS.T103823616A125584125.en. Retrieved 15 April 2023.
4. BirdLife International (2020). "Hemignathus lucidus". IUCN Red List of Threatened Species. 2020: e.T103823595A181392751. doi:10.2305/IUCN.UK.2020-3.RLTS.T103823595A181392751.en. Retrieved 15 April 2023.
5. James, Helen F., & Olson, Storrs L. (2003). A giant new species of nukupuu (Fringillidae: Drepanidini: Hemignathus) from the island of Hawaii. The Auk. 120(4): 970–981.

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• Hemignathus
• Hawaiian honeycreepers
• Endemic fauna of Hawaii
• Bird genera
• Carduelinae
• Higher-level bird taxa restricted to the Australasia-Pacific region
• Fringillidae stubs