Moho braccatus Cassin, 1855

Kaua'i 'o'o, Kauai o-o, 'o'o'a'a

Taxonomy & Nomenclature

Synonym/s: Moho braccathus Cassin, 1855

Conservation Status

Extinct (NatureServe, 2026)

Last record: 1987 (Kittelberger et al., 2024; NatureServe, 2026)

IUCN RedList status: Extinct

One of numerous species rediscovered prior to it's second putative extinction (last record 1945-rediscovered 1960).

Distribution & Habitat

Kaua'i, Hawaiian Islands, USA

Biology & Ecology

Hypodigm

[url=http://nlbif.eti.uva.nl/naturalis/detail.php?lang=uk&id=25]RMNH 110.028[/url]

[url=http://nlbif.eti.uva.nl/naturalis/detail.php?lang=uk&id=25]RMNH 110.029[/url] (male)

Media

Sound recordings, video recordings and a photo are available on the Macaulay Library website: https://search.macaulaylibrary.org/catalog?taxonCode=kauoo

Above: photograph by Robert Shallenberger /USFWS. Source: Wikimedia Commons.

References

Original scientific description:

Cassin, J. (1855). The 'o'o of Kauai. Proc. Acad. Nat. Sci. Philadelphia 7: 440.

Other references:

American Ornithologists' Union (AOU). 1998. Check-list of North American birds. Seventh edition. American Ornithologists' Union, Washington, D.C.

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Anonymous. (1964). List of rare birds, including those thought to be so but of which detailed information is still lacking. IUCN Bulletin 10(Special Supplement): 4 pp.

Atkinson, I. A. E. 1977. A reassessment of factors, particularly RATTUS RATTUS (L.), that influenced the declineof endemic forest birds in the Hawaiian Islands. Pacific Science 31:109-133.

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BirdLife International. (2012). Moho braccatus. In: IUCN 2012. IUCN Red List of Threatened Species. Version 2012.2. (http://www.iucnredlist.org). Downloaded on 23 May 2013.

BirdLife International. (2016). Moho braccatus. The IUCN Red List of Threatened Species 2016: e.T22704323A93963628. https://dx.doi.org/10.2305/IUCN.UK.2016-3.RLTS.T22704323A93963628.en. Accessed on 14 June 2022.

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Zhao, Min, Kimball, Rebecca T. and Braun, Edward L. (2026). The Phylogenetic Position of the Extinct Hawaiian Honeyeaters: Overcoming the Limitations of Historical DNA. Zoologica Scripta. https://doi.org/10.1111/zsc.70047

http://ebird.org/ebird/view/checklist?subID=S27677511

https://www.engadget.com/2018/05/25/kauai-oo-honeyeater-youtube-memorial-ghost-media/?guccounter=1

https://extinctanimals.proboards.com/thread/8854/moho-braccatus-kauai-oo

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