Data Zone
Taxonomic note
Sylvia dohrni (del Hoyo and Collar 2016) was previously listed as Horizorhinus dohrni.
Taxonomic source(s)
del Hoyo, J., Collar, N.J., Christie, D.A., Elliott, A., Fishpool, L.D.C., Boesman, P. and Kirwan, G.M. 2016. HBW and BirdLife International Illustrated Checklist of the Birds of the World. Volume 2: Passerines. Lynx Edicions and BirdLife International, Barcelona, Spain and Cambridge, UK.
| Critically Endangered | Endangered | Vulnerable |
|---|---|---|
| - | - | - |
| Year | Category | Criteria |
|---|---|---|
| 2018 | 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 | not a migrant | Forest dependency | medium |
| Land-mass type | Average mass | - |
| Estimate | Data quality | |
|---|---|---|
| Extent of Occurrence (breeding/resident) | 200 km2 | medium |
| Severely fragmented? | no | - |
| Estimate | Data quality | Derivation | Year of estimate | |
|---|---|---|---|---|
| Population size | unknown | - | - | - |
| Population trend | stable | - | suspected | - |
| Generation length | 4.4 years | - | - | - |
Population justification: The global population size has not been quantified, but the species is described as abundant in cocoa plantations and forest re-growth and less common in coconut plantations (del Hoyo et al. 2007).
Trend justification: The species does occur in degraded habitats, although it may prefer primary forest (see Dallimer et al. 2012). However, the population is suspected to be stable in the absence of evidence for any declines or substantial threats (del Hoyo et al. 2007).
| Country/Territory | Presence | Origin | Resident | Breeding visitor | Non-breeding visitor | Passage migrant |
|---|---|---|---|---|---|---|
| São Tomé e Príncipe | extant | native | yes |
| Country/Territory | IBA Name |
|---|---|
| São Tomé e Príncipe | Príncipe forests |
| Habitat (level 1) | Habitat (level 2) | Importance | Occurrence |
|---|---|---|---|
| Artificial/Terrestrial | Plantations | suitable | resident |
| Artificial/Terrestrial | Rural Gardens | suitable | resident |
| Forest | Subtropical/Tropical Moist Lowland | major | resident |
| Shrubland | Subtropical/Tropical Moist | suitable | resident |
| Altitude | Occasional altitudinal limits |
Recommended citation
BirdLife International (2024) Species factsheet: Dohrn's Warbler Sylvia dohrni. Downloaded from
https://datazone.birdlife.org/species/factsheet/dohrns-warbler-sylvia-dohrni 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.