Sumba Hornbill
Rhyticeros everetti
A small black hornbill with an ivory-colored bill that has a reddish smudge at the base and a knob on top. There is a pale blue pouch of skin below the bill. Males have a rich chestnut neck that becomes a darker burnt red around the face and top of the head. Females have black necks and heads. Juveniles resemble male, with a smaller bill. Confined to Sumba, where it is the only hornbill. Inhabits lowland and foothill forest and forest edge, where it frequents the treetops singly or in groups. Calls include a fast-paced, emphatic “kokokokokokok…”.
识别特征
It is a medium-sized, blackish hornbill, approximately 70 cm long. The male is dark reddish-brown on the crown and nape, with a paler neck. The female has entirely black plumage. Both sexes have a large, dull, yellowish bill with a maroon patch at the base, a serrated casque, and an inflatable blue throat.
分类信息
- 学名
- Rhyticeros everetti
- 命名信息
- Rothschild, 1898
- 目
- Bucerotiformes
- 科
- Bucerotidae
- 属
- Rhyticeros
分布与栖息地
An Indonesian endemic, the Sumba hornbill inhabits semi-evergreen forests of Sumba in the Lesser Sunda Islands. It is uncommon and found in the lowlands at altitudes of up to 950 m (3,120 ft).
- 迁徙
- Resident species
行为
The Sumba hornbill is a monogamous species. Its diet consists mainly of fruits.
保护状况
Due to ongoing habitat loss, limited range, small population size and overhunting in some areas, the Sumba hornbill is assessed as Vulnerable on the IUCN Red List of Threatened Species. It is listed on Appendix II of CITES. Part of its habitat is protected in the Laiwangi Wanggameti National Park and the Manupeu Tanah Daru National Park.
- 种群趋势
- declining
照片
分布
其他鸟类

Mao
Gymnomyza samoensis
A large, entirely dark honeyeater. Plumage becomes paler from the shoulders back, turning blackish to yellowish-olive. Note the caramel-colored moustache stripe below the eye. Dependent on native primary forest in foothills and montane areas. Voice includes a sequence of rising nasal piping notes, vocal and loud.

Undulated Antshrike
Frederickena unduliger
Magnificent dark antshrike of mature upland rainforest. Has a large head with a crest and strongly hooked bill. Males are slaty gray with fine black barring; females are tawny orange with fine black barring. Larger than most other antshrikes and antbirds in its range. Forages singly or in pairs in open understory, and seems to be somewhat rare throughout its range. Its song is a gradually rising series of low whistles given at a steady pace.

Opal-rumped Tanager
Tangara velia
Common tanager, found in a variety of forest habitats. Usually seen from below, in which case it is best identified by uniform dark underparts with rufous lower belly and undertail coverts, and active behavior. The shining white rump can be seen from most angles on perched birds, even when high overhead. Found in tall rainforest, shorter-stature forests on sandy soils, and in disturbed areas. Groups move rapidly through treetops, usually with other species of small tanagers, feeding on fruit. Calls are indistinct chips, often given in rapid series in flight.
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