Hawaiʻi ʻamakihi

From Wikipedia, the free encyclopedia
Jump to: navigation, search
Hawaiʻi ʻamakihi
Amakihi.jpg
Hemignathus virens.jpg
Conservation status
Scientific classification
Kingdom: Animalia
Phylum: Chordata
Class: Aves
Order: Passeriformes
Family: Fringillidae
Subfamily: Carduelinae
Tribe: Hemignathini
Genus: Hemignathus
Species: H. virens
Binomial name
Hemignathus virens
(Cabanis, 1851)
Synonyms

Viridonia virens

The Hawaiʻi ʻamakihi (Hemignathus virens), also known as the common ʻamakihi, is a species of Hawaiian honeycreeper.

Distribution and habitat[edit]

It is found on the Big Island, Maui, and Molokaʻi in Hawaii.[2] It formerly occurred on Lānaʻi where it was last seen in 1976.[2] It is one of the most common honeycreepers, inhabiting all types of habitat on the islands at elevations from sea level to 8,000 feet (2,400 m). Of all the forest birds native to Hawaii, the Hawaiʻi ʻamakihi has been affected the least by habitat changes. It is suspected that it is evolving resistance to diseases such as avian malaria. Along with the ʻapapane, it is one of the two Hawaiian honeycreepers listed by the IUCN as being of least concern.

Description[edit]

The Hawaiʻi ʻamakihi is a small bird, measuring about 10 centimetres (3.9 in) in length.[3] It is yellow-green with a small black bill that is 1.3 centimetres (0.51 in) long and has brown eyes with black pupils. It is a small bird with a powerful voice. It utters short chirps, Aki, Ki, Ki, A, which can be heard well over a mile.

Taxonomy[edit]

It has two subspecies: H. v. wilsoni on Maui, Molokaʻi, and (formerly) Lānaʻi, and H. v. virens on the Big Island of Hawaiʻi.[4] The Oʻahu ʻamakihi (H. flavus) and Kauaʻi ʻamakihi (H. kauaiensis) were formerly included in this species.[2]

Behaviour[edit]

Feeding[edit]

The Hawaiʻi ʻamakihi has a very wide diet, and has been able to find food despite habitat alteration. It has a tubular tongue, which it uses to drink nectar from flowers such as those of the ʻōhiʻa lehua (Metrosideros polymorpha), ʻākala (Rubus hawaiensis), and māmane (Sophora chrysophylla). If necessary, it will suck juice from fruits. The Hawaiʻi ʻamakihi also hunts for spiders and insects among trees and shrubs.[3]

Breeding[edit]

During the breeding season, between January and March, it makes a small nest made of woven plant fibers, and in most cases lays only a single egg. Only in rare cases does this bird lay two eggs. The chick(s) hatches after two weeks and out comes naked except for a couple of yellow feathers. After two to three weeks, the chicks are fledged and then off to find a new territory of their own.

References[edit]

  1. ^ BirdLife International (2012). "Hemignathus virens". IUCN Red List of Threatened Species. Version 2013.2. International Union for Conservation of Nature. Retrieved 26 November 2013. 
  2. ^ a b c Hawaii Amakihi, Hawaii's Comprehensive Wildlife Conservation Strategy. Accessed 18 May 2012.
  3. ^ a b "Hemignathus virens". Native Forest Birds of Hawai'i. Conservation Hawaii. Retrieved 2009-02-07. 
  4. ^ Gill, F & D Donsker (eds). 2012. IOC World Bird Names (v 3.1). Accessed 18 May 2012.