Great Hornbill Buceros bicornis

Family: Bucerotidae (Hornbills)

Authority: Linnaeus, 1758

Red List Category

Criteria: A3cd+4cd

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Justification of Red List category
This species is restricted to large tracts of undisturbed forest within a region experiencing high rates of deforestation. High hunting pressure is likely exacerbating the population decline caused by habitat loss. The species is suspected to undergo a large population reduction over the next three generations. Therefore, it is listed as Vulnerable.

Population size: 13000-27000 mature individuals

Population trend: decreasing

Extent of occurrence (breeding/resident): 10,300,000 km2

Country endemic: no

Land-mass type - continent
Land-mass type - shelf island
Realm - Indomalayan
Realm - Palearctic
IUCN Ecosystem -- Terrestrial biome

Recommended citation
BirdLife International (2023) Species factsheet: Buceros bicornis. Downloaded from on 02/12/2023.
Recommended citation for factsheets for more than one species: BirdLife International (2023) IUCN Red List for birds. Downloaded from on 02/12/2023.