Data Zone
Taxonomic note
Arizelocichla milanjensis and A. striifacies (del Hoyo and Collar 2016) were previously lumped as Andropadus milanjensis following Dowsett & Forbes-Watson (1993).
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 |
|---|---|---|
| 2024 | Least Concern | |
| 2016 | Least Concern | |
| 2012 | Not Recognised | |
| 2008 | Not Recognised | |
| 2004 | Not Recognised | |
| 2000 | Not Recognised | |
| 1994 | Not Recognised | |
| 1988 | Lower Risk/Least Concern |
| Migratory status | altitudinal migrant | Forest dependency | medium |
| Land-mass type | Average mass | - |
| Estimate | Data quality | |
|---|---|---|
| Extent of Occurrence (breeding/resident) | 643,000 km2 | medium |
| Severely fragmented? | no | - |
| Estimate | Data quality | Derivation | Year of estimate | |
|---|---|---|---|---|
| Population size | unknown | - | - | - |
| Population trend | decreasing | - | suspected | - |
| Generation length | 3.81 years | - | - | - |
Population justification: The global population size has not been quantified. This species is considered to have a medium dependency on forest habitat, and tree cover is estimated to have declined by 13.4% within its mapped range over the past 10 years (Global Forest Watch 2022, using Hansen et al. [2013] data and methods disclosed therein). Therefore, as a precautionary measure, it is tentatively suspected that this loss of cover may have led to a decline of between 1-19% in the species' population size over the same time frame.
Trend justification: .
| Country/Territory | Presence | Origin | Resident | Breeding visitor | Non-breeding visitor | Passage migrant |
|---|---|---|---|---|---|---|
| Kenya | extant | native | yes | |||
| Malawi | extant | native | yes | |||
| Mozambique | extant | native | yes | |||
| Tanzania | extant | native | yes |
| Country/Territory | IBA Name |
|---|---|
| Malawi | Liwonde Hills Forest Reserve |
| Malawi | Mangochi Mountain Forest Reserve |
| Malawi | Misuku Hills Forest Reserves |
| Malawi | Mount Mulanje Forest Reserve |
| Malawi | Ntchisi Mountain Forest Reserve |
| Malawi | Nyika National Park (Malawi) |
| Malawi | Soche Mountain Forest Reserve |
| Malawi | South Viphya Forest Reserve |
| Malawi | Uzumara Forest Reserve |
| Mozambique | Mount Mabu |
| Mozambique | Mount Namuli |
| Mozambique | Njesi plateau |
| Tanzania | Arusha National Park and vicinity |
| Tanzania | Livingstone Mountains forests |
| Tanzania | Mount Kilimanjaro |
| Tanzania | Mount Rungwe |
| Tanzania | Ngorongoro Conservation Area |
| Tanzania | Nguru Mountains |
| Tanzania | Nguu Mountains |
| Tanzania | Njombe forests |
| Tanzania | North Pare Mountains |
| Tanzania | Rubeho Mountains |
| Tanzania | South Pare Mountains |
| Tanzania | Udzungwa Mountains |
| Tanzania | Udzungwa National Park |
| Tanzania | Ukaguru Mountains |
| Tanzania | Uluguru Mountains |
| Tanzania | West Usambara Mountains |
| Habitat (level 1) | Habitat (level 2) | Importance | Occurrence |
|---|---|---|---|
| Artificial/Terrestrial | Plantations | suitable | resident |
| Forest | Subtropical/Tropical Moist Lowland | major | resident |
| Forest | Subtropical/Tropical Moist Montane | major | resident |
| Shrubland | Subtropical/Tropical High Altitude | suitable | resident |
| Shrubland | Subtropical/Tropical Moist | suitable | resident |
| Altitude | 900 - 2150 m | Occasional altitudinal limits | (min) 150 m |
Recommended citation
BirdLife International (2024) Species factsheet: Olive-headed Bulbul Arizelocichla striifacies. Downloaded from
https://datazone.birdlife.org/species/factsheet/olive-headed-bulbul-arizelocichla-striifacies on 04/12/2024.
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 04/12/2024.