Hemignathus

Hawaii Akialoa ( Hemignathus obscurus )

Hemignathus (Greek for " half- jaw " ) are a genus of small to very large clothes birds that are endemic to the Hawaiian Islands. They are characterized by more or less long, down curved, sharply pointed beaks. Their size is very different, but the beak First is always bent and the lower jaw is always arched, with one exception in the profile. The back is olive plumage in adult birds of all kinds. The underside is yellowish to olive green. The narrow reins are dark gray to black. The beak is dark brownish gray to black, often with a light blue base. The females differ from the males by their duller plumage. The immature birds are greenish gray at the top and dirty on the underside white with pale wing bars. The food spectrum of Hemignathus varies from plant-based diet on nectar to insects dishes. The song can consist of short, fairly constant trills or Geflöte as well as from more complex singing.

System

Within the genus Hemignathus the three subgenera Hemignathus (sensu stricto ), and Akialoa Heterorhynchus be distinguished. Chlorodrepanis and Viridonia are former subgenera. Magumma was in 2008 by the AOU to separate genus charged with the yellow dresses Vogel ( Magumma parva ) is the only kind

Hemignathus ( " in the strict sense " )

This subgenus is characterized by sharp, long and curved beaks down. Your food range includes nectar and insects, even small vertebrates are captured. A characteristic behavior in hunting (H. lucidus ) is valid under the bark of trees hidden insect larvae: with the lower mandible, the bark will be opened, fetched with the fine long upper beak prey.

  • Kauai Amakihikleidervogel Hemignathus kauaiensis. Distribution: Kauai (temporarily in its own subgenus Chlorodrepanis, synonym: Chlorodrepanis stejnegeri )
  • Oahu Amakihikleidervogel Hemignathus flavus. Distribution: Oahu (temporarily in its own subgenus Chlorodrepanis, Synonyms: Chlorodrepanis flava, Viridonia chloris, Nectarinia flava, Hemignathus chloris )
  • Hawaii Amakihikleidervogel Hemignathus virens. Distribution: Hawaii (temporarily in its own subgenus Chlorodrepanis, Synonyms: Chlorodrepanis virens virens Xuanmu )
  • † Hermit green dresses Vogel ( Hemignathus sagittirostris ). Distribution: Hawaii (temporarily in its own subgenus Viridonia ) (1901 extinct)
  • † Hemignathus vorpalis. Distribution: Hawaii ( known only by subfossiles material )
  • † Oahu sickle dresses bird Hemignathus lucidus. Distribution: Oahu (1837 extinct)
  • † (?) Maui sickle dresses bird Hemignathus lucidus affinis. Distribution: Maui (formerly considered a separate species ) ( Probably extinct, the last reliable detection 1995)
  • † (?) Kauai sickle dresses bird Hemignathus lucidus hanapepe. Distribution: Kauai (formerly considered a separate species ) ( Probably extinct, the last reliable detection 1995)

Akialoa

Formerly regarded as a separate genus. Characterized by long, curved beaks down. Mainly nectar eaters.

  • † Oahu Akialoa Hemignathus ellisianus (synonym: Hemignathus lichtensteini ). Distribution: Oahu (the last reliable sighting was 1892) † Kauai Akialoa Hemignathus ellisianus stejnegeri. Distribution: Kauai (formerly considered a separate species ) ( last seen in 1965 )
  • † Lanai Akialoa Hemignathus ellisianus lanaiensis. Distribution: Lanai (formerly considered a separate species ) (the last reliable sighting was 1894)

An undescribed species, which has similarities with Hemignathus upupirostris in the beak morphology is subfossil known from the island of Maui.

Heterorhynchus

Formerly regarded as a separate genus. The upper beak is long and curved downward, the lower mandible short and strong. The main food consists of insects.

  • Hawaiian dresses sickle bird or Akiapolaau Hemignathus munroi (synonyms: Hemignathus wilsoni, Heterorhynchus wilsoni ). Distribution: Hawaii
Lesser ʻAkialoa Finch Giant Nukupu‘u Hoopoe-billed ʻAkialoa
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