Rhinoplax vigil

Taxonomy

Assessment Information

Geographic Range

Population

Habitat and Ecology

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Taxonomy [top]

Kingdom	Phylum	Class	Order	Family
ANIMALIA	CHORDATA	AVES	Coraciiformes	Bucerotidae

Scientific Name:

Rhinoplax vigil

Species Authority:

(Forster, 1781)

Common Name/s:

English	–	Helmeted Hornbill
Spanish	–	Cálao De Casco

Synonym/s:

Buceros vigil

Taxonomic Notes:

Use of the genus Rhinoplax follows BirdLife International (2001).

Assessment Information [top]

Red List Category & Criteria:

Near Threatened ver 3.1

Year Assessed:

2008

Assessor/s

BirdLife International

Evaluator/s:

Butchart, S. & Gilroy, J. (BirdLife International Red List Authority)

Justification:
This forest-dependent species is likely to be declining moderately rapidly throughout its range as a result of habitat loss and hunting pressure. It is considered Near Threatened, and should be carefully monitored in case of future increases in the rate of decline.

History:

2004	–	Near Threatened
2000	–	Lower Risk/near threatened
1994	–	Lower Risk/near threatened
1988	–	Threatened

Geographic Range [top]

Range Description:	Rhinoplax vigil is confined to the Sundaic lowlands, where it is known from south Tenasserim, Myanmar, peninsular Thailand, Sabah, Sarawak and Peninsular Malaysia, Singapore, Kalimantan and Sumatra, Indonesia and Brunei, in semi-evergreen and evergreen lowland forest to 1,500 m. Forest destruction in the Sundaic lowlands of Indonesia has been so extensive that all primary formations are expected to disappear by 2010, and the situation is little different in Malaysia. However, the species's ability to persist at higher elevations, where forest destruction has been less severe, means that its decline has been less rapid. It is also threatened by hunting, particularly for its casque, and its population should therefore be monitored carefully. CITES Appendix I.
Countries:	Native: Brunei Darussalam; Indonesia; Malaysia; Myanmar; Thailand Regionally extinct: Singapore

Range Description:

Rhinoplax vigil is confined to the Sundaic lowlands, where it is known from south Tenasserim, Myanmar, peninsular Thailand, Sabah, Sarawak and Peninsular Malaysia, Singapore, Kalimantan and Sumatra, Indonesia and Brunei, in semi-evergreen and evergreen lowland forest to 1,500 m. Forest destruction in the Sundaic lowlands of Indonesia has been so extensive that all primary formations are expected to disappear by 2010, and the situation is little different in Malaysia. However, the species's ability to persist at higher elevations, where forest destruction has been less severe, means that its decline has been less rapid. It is also threatened by hunting, particularly for its casque, and its population should therefore be monitored carefully. CITES Appendix I.

Countries:

Native:

Brunei Darussalam; Indonesia; Malaysia; Myanmar; Thailand

Regionally extinct:

Singapore

Population [top]

Population Trend:	Decreasing

Population Trend:

Decreasing

Habitat and Ecology [top]

Systems:	Terrestrial

Systems:

Terrestrial

Citation:	BirdLife International 2008. Rhinoplax vigil. In: IUCN 2010. IUCN Red List of Threatened Species. Version 2010.1. <www.iucnredlist.org>. Downloaded on 21 March 2010.
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