ʻAkikiki

The akikiki (''Oreomystis bairdi''), also called the Kauai creeper, is a critically endangered Hawaiian honeycreeper endemic to Kauai, Hawaii.

Description

The akikiki is small (13 cm length; 12-17 g mass), with gray plumage above and white below. It is not sexually dimorphic. Juveniles have large white eye rings; adults may retain a pale eyebrow for several years. Legs and bill are pink. The tail is short compared to other birds on Kauai, giving it a stocky appearance.

Vocalizations

The adult contact call is a short ''weet'' or ''whit'', sometimes doubled. The call may also resemble that of the anianiau, with which it may flock. Its song, heard only in breeding season, is a descending trill. The juvenile begging call is a stuttering series of ''chits''. During the breeding season, females use a similar call to solicit feeding by males.

Distribution and habitat

It is currently found only in the highest elevation native rainforests of Kokee State Park and the Alakai Wilderness Preserve on Kauai. Subfossil records indicate that it was once found at sea level as well, and thus may have inhabited a wider range of habitats, including dry forest.

Diet and foraging behavior

The akikiki is often compared to the nuthatches of North America because it forages by hopping along the trunks and branches of both live and dead trees, picking off arthropods. Akikiki often forage in pairs, family groups, or mixed-species flocks.

Breeding

Few akikiki nests have been found. Nesting occurs from March to June, with both males and females constructing nests of moss and lichen several meters up in the crowns of ohia trees.Foster, J. T., et al. Akikiki (''Oreomystis bairdi''). In: Poole, A. and F. Gill (eds.) ''The Birds of North America''. Philadelphia, Pennsylvania: The Birds of North America Inc. 2000. Only the female incubates the eggs, but both parents feed the nestlings and fledglings. The long juvenile dependency period means only a single brood per pair is typically raised each breeding season.

In 2018, the first akikiki was bred in captivity with the assistance of the San Diego Zoo.

Threats

The akikiki's habitat has been reduced to a fragment of its former range by deforestation and deterioration by invasive species. Avian malaria, to which most Hawaiian honeycreepers have little immunity, affects birds below approximately 1000 m elevation and further restricts the akikiki's range. Introduced rats are thought to be major predators of eggs and nestlings. Competition for food and space with non-native birds, such as Japanese white-eye, may also affect its numbers.

Conservation

The akikiki has been listed as critically endangered on the IUCN Red List since 2000. It has been a candidate for listing as an endangered species under the Endangered Species Act since 1993, but was not listed as such until 2010. Because little is known about this species, the primary focus of recovery efforts so far have been estimating the population size and understanding its basic biology. Captive breeding, reintroduction, and habitat restoration are planned. In May 2015, a high-school teacher in Tamil Nadu, India named Prakash Vaithyanathan suggested that the International Astronomical Union name a celestial body Akikiki during the 2015 IAU General Assembly conducted in Hawaii. After much consideration, asteroid number 7613 was officially named 7613 Akikiki.

References

External links

Audubon WatchListARKiveKauai Forest Bird Recovery Project
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{{DEFAULTSORT:Akikiki
Oreomystis
Hawaiian honeycreepers
Endemic fauna of Hawaii
Critically endangered fauna of Hawaii
Birds described in 1887
Taxa named by Leonhard Stejneger
Taxonomy articles created by Polbot
ESA endangered species