LC
Lowland Tiny Greenbul Phyllastrephus debilis



Taxonomy

Taxonomic note

Phyllastrephus debilis and P. albigula (del Hoyo and Collar 2016) were previously lumped as P. debilis following Dowsett & Forbes-Watson (1993) and Sibley & Monroe (1990, 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.

IUCN Red list criteria met and history
Red List criteria met
Critically Endangered Endangered Vulnerable
- - -

Red List history
Year Category Criteria
2018 Least Concern
2016 Least Concern
Species attributes

Migratory status not a migrant Forest dependency Medium
Land mass type Average mass -
Distribution

Estimate Data quality
Extent of Occurrence breeding/resident (km2) 974,000 medium
Number of locations -
Severely Fragmented -
Population and trend
Value Data quality Derivation Year of estimate
No. of mature individuals unknown not applicable not applicable 0
Population trend Decreasing estimated -
Decline (3 years/1 generation past) - - -
Decline (5 years/1 generation past) - - -
Decline (10 years/1 generation past) - - -
Decline (10 years/3 generation future) - - -
Decline (10 years/3 generation past and future) - - -
Number of subpopulations - - -
Percentage in largest subpopulation - - -
Generation length (yrs) 4.5 - - -

Population justification: The global population size has not been quantified, but the species is described as generally common (del Hoyo et al. 2005).

Trend justification: The population is estimated to be in decline following recorded declines in the north and south of the species's range (del Hoyo et al. 2005).


Country/territory distribution
Country/Territory Occurrence status Presence Resident Breeding Non-breeding Passage
Kenya N Extant Yes
Mozambique N Extant Yes
Tanzania N Extant Yes
Zimbabwe N Extant Yes

Important Bird and Biodiversity Areas (IBA)
Country/Territory IBA Name
Kenya Arabuko-Sokoke Forest
Kenya Diani Forest
Kenya Dzombo Hill Forest
Kenya Marenji Forest
Kenya Mrima Hill Forest
Kenya Shimba Hills
Mozambique Zambezi River Delta
Mozambique Gorongosa Mountain and National Park
Tanzania Mikumi National Park
Tanzania Selous Game Reserve
Tanzania Bagamoyo District Coastal Forests
Tanzania Kisarawe District Coastal Forests
Tanzania Rufiji District Coastal Forests
Tanzania Pande Game Reserve and Dondwe Coastal Forests
Tanzania Kilwa District Coastal Forests
Tanzania Lindi District Coastal Forests
Tanzania Mtwara District Coastal Forests
Tanzania Pangani District Coastal Forests
Tanzania East Usambara Mountains
Zimbabwe Nyanga lowlands/Honde valley
Kenya Boni and Dodori National Reserves

Habitats & altitude
Habitat (level 1) Habitat (level 2) Importance Occurrence
Forest Subtropical/Tropical Moist Lowland major resident
Savanna Dry suitable resident
Shrubland Subtropical/Tropical Dry suitable resident
Altitude   Occasional altitudinal limits  

Recommended citation
BirdLife International (2022) Species factsheet: Phyllastrephus debilis. Downloaded from http://www.birdlife.org on 15/08/2022. Recommended citation for factsheets for more than one species: BirdLife International (2022) IUCN Red List for birds. Downloaded from http://www.birdlife.org on 15/08/2022.