Malabar Grey Hornbill Ocyceros griseus

Family: Bucerotidae (Hornbills)

Authority: (Latham, 1790)

Red List Category

Criteria: A2bc+3bc+4bc

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Justification of Red List category
The species is inferred to be declining at a rapid rate based on two independent sources; a significant decline in densities recorded from targeted surveys conducted in 2004-5 and 2017-18; and declining abundance indices from citizen science data collected throughout the range. The cause of these reductions are unclear. As such, Malabar Grey Hornbill is assessed as Vulnerable under Criterion A2bc + A3bc + A4bc.

Population size: unknown

Population trend: decreasing

Extent of occurrence (breeding/resident): 271,000 km2

Country endemic: yes

Realm - Indomalayan
IUCN Ecosystem -- Terrestrial biome

Recommended citation
BirdLife International (2024) Species factsheet: Ocyceros griseus. Downloaded from on 22/02/2024.
Recommended citation for factsheets for more than one species: BirdLife International (2024) IUCN Red List for birds. Downloaded from on 22/02/2024.