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Kauaʻi ʻelepaio

Kauaʻi ʻelepaio
Scientific classification Edit this classification
Domain: Eukaryota
Kingdom: Animalia
Phylum: Chordata
Class: Aves
Order: Passeriformes
Family: Monarchidae
Genus: Chasiempis
C. sclateri
Binomial name
Chasiempis sclateri
Ridgway, 1882
  • Chasiempis sandwichensis sclateri

The Kauaʻi ʻelepaio (Chasiempis sclateri) is a monarch flycatcher found on the Hawaiian Island of Kauai. It numbered 40,000 around 1970, but declined by half in the 1990s. Whether this fluctuation is natural and thus the birds' numbers will rebound or whether it signifies a novel threat remains to be seen. However, it seems the birds are making a recovery, as population density on the Alakai plateau has increased by 13% in recent years.

Taxonomy and systematics

Alakai Wilderness – Kauaʻi, Hawaii (flash photo)

The Kauaʻi ʻelepaio was formerly considered as a subspecies of the Hawaii ʻelepaio (Chasiempis sandwichensis sclateri) until reclassified as a separate species in 2010.[2]


This is the most distinct ʻelepaio; adult birds have their head and back gray, with a white supercilium, a rusty-red breast and a white underside. Young birds are uniformly rusty above and white below. Wings and tail are alike in all subspecies, but the young individuals of sclateri have the white stippling of the wings replaced by rusty coloration too.


  1. ^ BirdLife International (2018). "Chasiempis sclateri". IUCN Red List of Threatened Species. 2018: e.T22736432A122918684. doi:10.2305/IUCN.UK.2016-3.RLTS.T22736432A122918684.en. Retrieved 19 November 2021.
  2. ^ "Species Version 2 « IOC World Bird List". Retrieved 2016-10-26.

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Kauaʻi ʻelepaio
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