Rarity Status
Currently this species is not classified as a rarity in this country OR information has not been updated.
Population
Estimated population is 44,000 (2010) and increasing.
Status VU
Habitat destruction and degradation (either owing to clearance for timber and agriculture, or to introduced herbivores), and the spread of avian diseases, are the main threats.
For more information see BirdLife International Species Factsheet.
Food
Nectar and arthropods, especially caterpillars and spiders.
Voice
Song is a vigorous trill of doubled or tripled notes 'weesee-weesee-weesee-' or 'weesity-weesity-weesity-' etc. Typical call is a two-note 'tew-weet', down then up. Also a loud, single chirp similar to call of Kauai Amakihi (Chlorodrepanis stejnegeri).
Anianiau (Magumma parva) [XC174952]
by Dan Lane from Alaka'i Swamp trail, Kaua'i, Hawaii, United States (call)
Anianiau (Magumma parva) [XC59047]
by Frank Lambert from Alaka'i Swamp trail, Kaua'i, Hawaii, United States (call, song)
Subspecies
Under differing taxonomic treatments, has at times variously been placed in one or other of genera Hemignathus, Loxops, Chlorodrepanis or Viridonia, but morphological and genetic studies indicate that it represents independent branch of family, lacking any sister-species.
No subspecies.
Similar Species
Kauai Amakihi (Chlorodrepanis stejnegeri), Akekee (Loxops caeruleirostris), and Kaua`i Oahu Nukupuu (Hemignathus lucidus), subspecies hanapepe, all have dark lores and different bill shapes. Introduced Japanese White-eye (Zosterops japonicus) has a straight bill and bold white eye-ring.
References
See References.
BirdLife International Species Factsheet