Grey-olive Greenbul (Phyllastrephus cerviniventris)

Grey-olive Greenbul Phyllastrephus cerviniventris

Current view: Data table and detailed info

Taxonomy

Taxonomic note

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.
Dowsett, R. J.; Forbes-Watson, A. D. 1993. Checklist of birds of the Afrotropical and Malagasy regions. Tauraco Press, Li
Sibley, C. G.; Monroe, B. L. 1990. Distribution and taxonomy of birds of the world. Yale University Press, New Haven, USA.

IUCN Red List criteria met and history

Red List criteria met

Critically Endangered	Endangered	Vulnerable
-	-	-

Red List history

Year	Category	Criteria
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

Species attributes

Migratory status	not a migrant	Forest dependency	low
Land-mass type		Average mass	27 g

Distribution

	Estimate	Data quality
Extent of Occurrence breeding/resident (km²)	2,500,000	medium
Severely fragmented?	no	-

Population and trend

	Value	Data quality	Derivation	Year of estimate
Number of mature individuals	unknown	not applicable	not applicable	0
Population trend	stable		suspected	-
Generation length (years)	4.5	-	-	-

Population justification: The global population size has not been quantified, but the species is reported to be locally fairly common but generally scarce (Keith et al. 1992).

Trend justification: The population is suspected to be stable in the absence of evidence for any declines or substantial threats.

Country/territory distribution

Country/Territory	Presence	Origin	Resident
Angola	extant	native	yes
Congo, The Democratic Republic of the	extant	native	yes
Kenya	extant	native	yes
Malawi	extant	native	yes
Mozambique	extant	native	yes
Tanzania	extant	native	yes
Zambia	extant	native	yes

Important Bird and Biodiversity Areas (IBA)

Country/Territory	IBA Name

Habitats & altitude

Habitat (level 1)	Habitat (level 2)	Importance	Occurrence
Forest	Subtropical/Tropical Moist Lowland	suitable	resident
Forest	Subtropical/Tropical Swamp	suitable	resident
Shrubland	Subtropical/Tropical Moist	major	resident
Altitude		Occasional altitudinal limits

Recommended citation
BirdLife International (2023) Species factsheet: Phyllastrephus cerviniventris. Downloaded from http://datazone.birdlife.org/species/factsheet/grey-olive-greenbul-phyllastrephus-cerviniventris on 22/09/2023. Recommended citation for factsheets for more than one species: BirdLife International (2023) IUCN Red List for birds. Downloaded from http://datazone.birdlife.org on 22/09/2023.