Buceros bicornis

Taxonomy

Assessment Information

Geographic Range

Population

Habitat and Ecology

Threats

Conservation Actions

Bibliography

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Taxonomy [top]

Kingdom	Phylum	Class	Order	Family
ANIMALIA	CHORDATA	AVES	CORACIIFORMES	BUCEROTIDAE

Scientific Name:

Buceros bicornis

Species Authority:

Linnaeus, 1758

Common Name/s:

English

–

Great Hornbill

Assessment Information [top]

Red List Category & Criteria:

Near Threatened ver 3.1

Year Published:

2008

Assessor/s:

BirdLife International

Reviewer/s:

Gilroy, J., Butchart, S.

Justification:
Although this species has a large range, it occurs at low densities and is patchily distributed. It is likely to be declining moderately rapidly throughout its range, and is therefore considered Near Threatened.

History:

2004

–

Near Threatened

Geographic Range [top]

Range Description:	Buceros bicornis has a wide distribution, occurring in China (rare resident in west and south-west Yunnan and south-east Tibet), India (locally fairly common, but declining), Nepal (local and uncommon, largely in protected areas), Bhutan (fairly common), Bangladesh (vagrant), Myanmar (scarce to locally common resident throughout), Thailand (widespread, generally scarce but locally common), Laos (formerly common; currently widespread but scarce and a major decline has clearly occurred), Vietnam (rare and declining resident), Cambodia (rare), Peninsular Malaysia (uncommon to more or less common) and Indonesia (uncommon on Sumatra).
Countries:	Native: Bhutan; Cambodia; China; India; Indonesia; Lao People's Democratic Republic; Malaysia; Myanmar; Nepal; Thailand; Viet Nam Introduced: Singapore Vagrant: Bangladesh
Range Map:	Click here to open the map viewer and explore range.

Population [top]

Population Trend:	Decreasing

Population Trend:

Decreasing

Habitat and Ecology [top]

Habitat and Ecology:	This species frequents evergreen and mixed deciduous forests, ranging out into open deciduous areas to visit fruit trees and ascending slopes to at least 1,560 m. The abundance of this species tends to be correlated with the density of large trees, and it is therefore most common in unlogged forest.
Systems:	Terrestrial

Threats [top]

Major Threat(s):	Logging is likely to have impacted this species throughout its range, particularly as it shows a preference for forest areas with large trees that may be targeted by loggers. Forest clearance for agriculture is also likely to have contributed to declines. It is particularly susceptible to hunting pressure as it is large, visits predictable feeding sites (such as fruiting trees) and its casques are kept or sold as trophies.

Major Threat(s):

Logging is likely to have impacted this species throughout its range, particularly as it shows a preference for forest areas with large trees that may be targeted by loggers. Forest clearance for agriculture is also likely to have contributed to declines. It is particularly susceptible to hunting pressure as it is large, visits predictable feeding sites (such as fruiting trees) and its casques are kept or sold as trophies.

Conservation Actions [top]

Conservation Actions:	Conservation Actions Underway CITES Appendix I. Conservation Actions Proposed Monitor populations across the range to determine the magnitude of declines and rates of range contraction. Campaign for the protection of remaining extensive tracts of lowland forest throughout the range.

Conservation Actions:

Conservation Actions Underway
CITES Appendix I.

Conservation Actions Proposed
Monitor populations across the range to determine the magnitude of declines and rates of range contraction. Campaign for the protection of remaining extensive tracts of lowland forest throughout the range.

Bibliography [top]

	BirdLife International. 2001. Threatened birds of Asia: the BirdLife International Red Data Book. BirdLife International, Cambridge, U.K. BirdLife International. 2001. Threatened birds of Asia: the BirdLife International Red Data Book. BirdLife International, Cambridge, U.K. BirdLife International. 2001. Threatened birds of Asia: the BirdLife International Red Data Book. BirdLife International, Cambridge, U.K. BirdLife International. 2001. Threatened birds of Asia: the BirdLife International Red Data Book. BirdLife International, Cambridge, U.K.

BirdLife International. 2001. Threatened birds of Asia: the BirdLife International Red Data Book. BirdLife International, Cambridge, U.K.

Citation:	BirdLife International 2008. Buceros bicornis. In: IUCN 2011. IUCN Red List of Threatened Species. Version 2011.2. <www.iucnredlist.org>. Downloaded on 17 May 2012.
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