ʻIʻiwi

ʻIʻiwi
HarmonyonPlanetEarth · CC BY 2.0 · source
Name	ʻIʻiwi
Status	CR
Status system	IUCN3.1
Genus	Drepanis
Species	coccinea
Authority	(Gmelin, 1789)

ʻIʻiwi The ʻIʻiwi is a Hawaiian honeycreeper endemic to the Hawaiian Islands, notable for its curved bill and brilliant scarlet plumage. It has played a prominent role in natural history studies on Charles Darwin-inspired adaptive radiation, contributed to ornithological surveys by institutions like the Bernice Pauahi Bishop Museum and National Audubon Society, and figures in conservation policy debates involving the United States Fish and Wildlife Service and International Union for Conservation of Nature. The species has cultural resonance across Hawaiian Kingdom history, modern State of Hawaii management, and museum collections at the Smithsonian Institution.

Taxonomy and etymology

Described by Johann Friedrich Gmelin in 1789, the species is placed in the genus Drepanis and was central to 19th-century taxonomic work by naturalists such as Georges Cuvier and Alfred Russel Wallace. Its common name in the Hawaiian language reflects indigenous taxonomy recorded during contacts involving figures like Captain James Cook and collectors associated with the London Natural History Museum. Molecular studies by researchers affiliated with University of Hawaiʻi at Mānoa, Harvard University, and the American Museum of Natural History clarified relationships among Hawaiian honeycreepers, linking the ʻIʻiwi to broader passerine lineages examined by labs at Smith College and the University of Oxford.

Description

The ʻIʻiwi is 12–15 cm long with a long, decurved bill adapted for nectar feeding, features emphasized in morphological comparisons by the Royal Society and field guides from the Cornell Lab of Ornithology. Adults display a vivid red plumage with black wings and tail, a coloration noted in plates by artists who worked with the Audubon Society and illustrators associated with the Britannica natural history volumes. Sexual dimorphism is subtle, a point referenced in monographs produced at the Bernice Pauahi Bishop Museum and specimens held by the Natural History Museum, London.

Distribution and habitat

Historically widespread across islands such as Hawaiʻi (island), Kauai, Oʻahu, Maui, and Molokaʻi, contemporary distribution is largely restricted to higher-elevation mesic and wet forests dominated by native taxa like ʻŌhiʻa lehua (Metrosideros polymorpha) and associated with plant genera studied by botanists at Kew Gardens and National Tropical Botanical Garden. Elevational shifts documented by researchers from the University of California, Berkeley and the US Geological Survey correspond with range contractions reported by conservation agencies including The Nature Conservancy and the World Wildlife Fund.

Behavior and ecology

The ʻIʻiwi is primarily a nectarivore visiting tubular flowers of native genera such as Metrosideros, Lobelia, and Ieie (Freycinetia), interactions explored in pollination studies led by scholars at the Smithsonian Tropical Research Institute and the University of Wisconsin–Madison. It also consumes arthropods, a behavior recorded in fieldwork by teams from BirdLife International and seasonal surveys by the Hawaiian Audubon Society. Breeding biology—nest construction, clutch size, and parental care—has been described in papers published through the Ecological Society of America and collaborative projects involving National Park Service biologists in Hawaiʻi Volcanoes National Park and Waimea Canyon State Park.

Conservation status and threats

Classified as Critically Endangered by the International Union for Conservation of Nature, the ʻIʻiwi faces threats from introduced avian malaria vectored by Culex quinquefasciatus mosquitoes, habitat loss tied to land-use changes involving entities like the Hawaiian Homes Commission and invasive plants cataloged by USDA Forest Service researchers, and predation linked to introduced mammals recorded in control studies by the University of California, Santa Cruz. Conservation responses have included captive-breeding discussions within networks such as the Association of Zoos and Aquariums, habitat restoration projects funded by the National Fish and Wildlife Foundation, and policy actions by the Hawaii Department of Land and Natural Resources and the United States Fish and Wildlife Service.

Cultural significance and human interactions

The ʻIʻiwi holds an iconic place in Hawaiian culture, appearing in chants and featherwork associated with the Kingdom of Hawaii royal regalia and kūpuna oral histories recorded by scholars at the University of Hawaiʻi Press and the Hawaiian Historical Society. Feathers were prized in lāʻī and ʻahuʻula cloaks displayed at institutions like the Bishop Museum and the Metropolitan Museum of Art, and the bird features in contemporary environmental education programs run by organizations including Kamehameha Schools and Hawaiian Legacy Reforestation Initiative. Conflicts over land management and conservation priorities have involved stakeholders such as the Office of Hawaiian Affairs and community groups linked to the Hoʻokuleana movement.

Category:Endemic birds of Hawaii