Anianiau

Magumma parva

A small Hawaiian honeycreeper of high elevation native forests on Kauai. Males are bright yellow and females are yellowish green. Smaller than the Kauai Amakihi with a straighter bill and without the faint black line between the bill and the eye. Moves quickly and incessantly in the understory and forest canopy in search of nectar, insects, and fruit. Fairly common in more remote areas of the eastern Alakai Plateau; uncommon to rare in the western Alakai and Kokee State Park. Song is a trill consisting of paired notes “weesee-weesee-weesee.” Call is a soft upslurred “su-weet.”

Identification

The 'anianiau is a brightly plumaged yellow bird and at 10 centimetres (3.9 in) in length, the smallest Hawaiian honeycreeper. The ʻanianiau has a slightly curved bill and a mass of about 10 g. The plumage of the female is more uniform and has a duller yellow-green color than the male's bright yellow. Its call is a pair of notes, tew-weet, while its song is a trill of wee-see, wee-see, wee-see.

Taxonomy

Scientific name
Magumma parva
Authority
(Stejneger, 1887)
Order
Passeriformes
Family
Fringillidae
Genus
Magumma

Range and habitat

ʻAnianiau are found in mesic and wet forests at elevations above 600 m (2,000 ft). The highest densities occur above 1,100 m (3,600 ft). Dominant tree species in its habitat include koa (Acacia koa), ʻōhiʻa lehua (Metrosideros polymorpha), ʻōlapa (Cheirodendron trigynum), and lapalapa (C. platyphyllum).

Migration
Resident species

Conservation

The range of the ʻanianiau has contracted by 85%, as it previously could be found in all forests of Kauai. Habitat degradation and invasion by non-native plants are the most significant threats to this species. Mosquito-transmitted diseases, such as avian malaria and fowlpox, are very rarely observed in captured ʻanianiau, so they may not be a major cause of mortality. Predation by rats and cats is possible but has not been documented. This species is protected in the Alakai Wilderness Preserve and surrounding environs as well as Waimea Canyon and Kokeʻe State Parks.

Population trend
declining

Photos

Distribution

Bird Calls

Other Birds

Pale-billed Hornbill

Pale-billed Hornbill

Lophoceros pallidirostris

Mid-sized gray hornbill with a white belly and horn-colored bill. The white tail corners are conspicuous in floppy flight. The sexes are similar, though males have a larger casque on top of the bill. Generally uncommon in miombo woodland. Usually in pairs or small groups. Similar to African Gray Hornbill, but has less contrasting overall coloration, and an entirely pale rather than mostly dark bill.

Bornean Wren-Babbler

Bornean Wren-Babbler

Ptilocichla leucogrammica

Large, stout wren-babbler. Highly dependent on pristine lowland forests; populations now declining and increasingly fragmented across Borneo as that habitat is rapidly deforested. Shy, foraging quietly under dense cover and amongst fallen trunks, usually in pairs or small groups. Best detected by song, a simple but beautiful two-note series of mournful, clear whistles: “doooo-deeee.” If seen well, note whitish face, white-and-black-streaked underparts, brown back, and pot-bellied appearance.

Medium Ground-Finch

Medium Ground-Finch

Geospiza fortis

One of the most common and conspicuous of the Galápagos finches. Bill is at least as long as the bill is deep, with the upper edge slightly rounded. Lower edge of bill is mostly straight. Bill is moderately stout-looking, but bill size varies between individuals, and not all birds can be accurately identified. Bill is black on breeding male and dull orange on female and nonbreeding male. Male’s plumage is sooty-black; female is brown with paler underparts that are streaked with gray. Large Ground-Finch’s bill has bulbous appearance and usually forms a ridge where it meets the crown. Small Ground-Finch’s bill is smaller and more pointed. Found in a wide variety of habitats on most islands, but absent from Española and Genovesa.

Start Your Bird Watching Journey

Identify a bird outdoors and keep the field guide close for your next observation.