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 |
|---|---|---|
| 2021 | Near Threatened | A2cd+3cd+4cd; B1ab(iii)+2ab(iii) |
| 2018 | Near Threatened | A2cd+3cd+4cd; B1ab(iii,v) |
| 2016 | Near Threatened | A2d+3d |
| 2012 | Near Threatened | A2d+3d+4d |
| 2011 | Near Threatened | A2d+3d+4d |
| 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 | not a migrant | Forest dependency | high |
| Land-mass type | Average mass | - |
| Estimate | Data quality | |
|---|---|---|
| Extent of Occurrence (breeding/resident) | 7,200 km2 | medium |
| Area of Occupancy (breeding/resident) | 1,328 km2 | |
| Number of locations | 11-30 | - |
| Severely fragmented? | no | - |
| Estimate | Data quality | Derivation | Year of estimate | |
|---|---|---|---|---|
| Population size | unknown | - | - | - |
| Population trend | decreasing | poor | suspected | 2010-2022 |
| Rate of change over the past 10 years/3 generations (longer of the two periods) | 20-29% | - | - | - |
| Rate of change over the future 10 years/3 generations (longer of the two periods) | 20-29% | - | - | - |
| Rate of change over the past & future 10 years/3 generations (longer of the two periods) | 20-29% | - | - | - |
| Generation length | 3.9 years | - | - | - |
Population justification: The global population size has not been quantified, but the species is reported to be very common on Príncipe (del Hoyo et al. 1997; Fundacao Príncipe 2019), and an estimated 47,846 - 205,079 (best estimate 114,419) individuals are found on São Tomé (Carvalho 2015).
Trend justification: The species is suspected to be undergoing a moderately rapid decline owing to hunting pressure (Carvalho 2015).
| Country/Territory | Presence | Origin | Resident | Breeding visitor | Non-breeding visitor | Passage migrant |
|---|---|---|---|---|---|---|
| Equatorial Guinea | extant | native | yes | |||
| São Tomé e Príncipe | extant | native | yes |
| Country/Territory | IBA Name |
|---|---|
| Equatorial Guinea | Annobón |
| São Tomé e Príncipe | Parque Natural Obô de São Tomé e Zona Tampão |
| São Tomé e Príncipe | Príncipe forests |
| São Tomé e Príncipe | São Tomé lowland forests |
| São Tomé e Príncipe | São Tomé montane and cloud-forests |
| São Tomé e Príncipe | São Tomé northern savannas |
| Habitat (level 1) | Habitat (level 2) | Importance | Occurrence |
|---|---|---|---|
| Artificial/Terrestrial | Plantations | suitable | resident |
| Artificial/Terrestrial | Subtropical/Tropical Heavily Degraded Former Forest | suitable | resident |
| Forest | Subtropical/Tropical Moist Lowland | major | resident |
| Altitude | 0 - 1668 m | Occasional altitudinal limits |
| Threat (level 1) | Threat (level 2) | Impact and Stresses | |||||||
|---|---|---|---|---|---|---|---|---|---|
| Biological resource use | Hunting & trapping terrestrial animals - Intentional use (species is the target) | Timing | Scope | Severity | Impact | ||||
| Ongoing | Majority (50-90%) | Rapid Declines | Medium Impact: 7 | ||||||
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Recommended citation
BirdLife International (2024) Species factsheet: Sao Tome Bronze-naped Pigeon Columba malherbii. Downloaded from
https://datazone.birdlife.org/species/factsheet/sao-tome-bronze-naped-pigeon-columba-malherbii on 23/11/2024.
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 23/11/2024.