Data Zone
Taxonomic source(s)
del Hoyo, J., Collar, N.J., Christie, D.A., Elliott, A. and Fishpool, L.D.C. 2014. HBW and BirdLife International Illustrated Checklist of the Birds of the World. Volume 1: Non-passerines. Lynx Edicions BirdLife International, Barcelona, Spain and Cambridge, UK.
| Critically Endangered | Endangered | Vulnerable |
|---|---|---|
| - | - | - |
| Year | Category | Criteria |
|---|---|---|
| 2020 | Least Concern | |
| 2016 | Least Concern | |
| 2012 | Least Concern | |
| 2009 | Least Concern | |
| 2008 | Least Concern | |
| 2004 | Least Concern | |
| 2000 | Lower Risk/Least Concern | |
| 1994 | Lower Risk/Least Concern | |
| 1988 | Lower Risk/Least Concern |
| Migratory status | altitudinal migrant | Forest dependency | high |
| Land-mass type | Average mass | - |
| Estimate | Data quality | |
|---|---|---|
| Extent of Occurrence (breeding/resident) | 71,900 km2 | |
| Severely fragmented? | no | - |
| Estimate | Data quality | Derivation | Year of estimate | |
|---|---|---|---|---|
| Population size | unknown | - | - | - |
| Population trend | stable | - | suspected | - |
| Generation length | 5.54 years | - | - | - |
Population justification: The global population size has not been quantified, but the species is reported to be locally common (del Hoyo et al. 2001). Surveys were carried out in one district in Sri Lanka in 2014 and 2015 (Wickramasinghe et al. 2018), which showed higher presence and distribution within non-forested habitats such as gardens and remnant forest patches. However population or density estimates are not available.
Trend justification: The population is suspected to be stable in the absence of evidence for any declines or substantial threats.
| Country/Territory | Presence | Origin | Resident | Breeding visitor | Non-breeding visitor | Passage migrant |
|---|---|---|---|---|---|---|
| Sri Lanka | extant | native | yes |
| Country/Territory | IBA Name |
|---|---|
| Sri Lanka | Ampara |
| Sri Lanka | Ayagama |
| Sri Lanka | Beraliya-Akurassa |
| Sri Lanka | Bodhinagala |
| Sri Lanka | Delgoda / Kudumiriya / Kobahadukanda |
| Sri Lanka | Dellawa / Diyadawa |
| Sri Lanka | Delmella |
| Sri Lanka | Delwela / Panilkanda / Walankanda |
| Sri Lanka | Gilimale-Eratna |
| Sri Lanka | Kalugala |
| Sri Lanka | Kantale Tank |
| Sri Lanka | Kithulgala |
| Sri Lanka | Knuckles Range (Knuckles IBA) |
| Sri Lanka | Kombala-Kottawa |
| Sri Lanka | Labugama |
| Sri Lanka | Madura Oya |
| Sri Lanka | Minneriya / Girithale / Kaudulla |
| Sri Lanka | Morapitiya-Runakanda |
| Sri Lanka | Morningside and Handapan Ella Plains (Sinharaja IBA) |
| Sri Lanka | Mulatiyana |
| Sri Lanka | Nakiyadeniya / Kanneliya / Dediyagala |
| Sri Lanka | Neugalkanda |
| Sri Lanka | Padaviya |
| Sri Lanka | Peak Wilderness Sanctuary |
| Sri Lanka | Polonnaruwa |
| Sri Lanka | Rammalkanda |
| Sri Lanka | Senanayake Samudraya / Nilgala |
| Sri Lanka | Sigiriya |
| Sri Lanka | Wasgomuwa |
| Sri Lanka | Welihena |
| Sri Lanka | Yagirala |
| Habitat (level 1) | Habitat (level 2) | Importance | Occurrence |
|---|---|---|---|
| Artificial/Terrestrial | Plantations | suitable | resident |
| Artificial/Terrestrial | Rural Gardens | major | resident |
| Forest | Subtropical/Tropical Dry | major | resident |
| Forest | Subtropical/Tropical Moist Lowland | major | resident |
| Altitude | 0 - 1200 m | Occasional altitudinal limits |
Recommended citation
BirdLife International (2024) Species factsheet: Sri Lanka Grey Hornbill Ocyceros gingalensis. Downloaded from
https://datazone.birdlife.org/species/factsheet/sri-lanka-grey-hornbill-ocyceros-gingalensis on 22/11/2024.
Recommended citation for factsheets for more than one species: BirdLife International (2024) IUCN Red List for birds. Downloaded from
https://datazone.birdlife.org/species/search on 22/11/2024.