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
Bucerotiformes
Bucerotidae
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

开始您的观鸟之旅

在户外识别鸟类,并在下一次观察时随手查阅鸟类图鉴。