Brown Woodland-warbler (Phylloscopus umbrovirens) | Details

Brown Woodland-warbler Phylloscopus umbrovirens

Current view: Data table and detailed info

Taxonomy

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
2024	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

Species attributes

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

Range

	Estimate	Data quality
Extent of Occurrence (breeding/resident)	3,990,000 km²
Severely fragmented?	no	-

Population

	Estimate	Data quality	Derivation	Year of estimate
Population size	unknown	-	-	-
Population trend	decreasing	-	suspected	-
Generation length	2.51 years	-	-	-

Population justification: The global population size has not been quantified, but the species is described as common to locally abundant (del Hoyo et al. 2006). This species is considered to have a medium dependency on forest habitat, and tree cover is estimated to have declined by 7% 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 distribution

Country/Territory	Presence	Origin	Resident
Burundi	extant	native	yes
Congo, The Democratic Republic of the	extant	native	yes
Djibouti	extant	native	yes
Eritrea	extant	native	yes
Ethiopia	extant	native	yes
Kenya	extant	native	yes
Rwanda	extant	native	yes
Saudi Arabia	extant	native	yes
Somalia	extant	native	yes
South Sudan	extant	native	yes
Sudan	extant	native	yes
Tanzania	extant	native	yes
Uganda	extant	native	yes
Yemen	extant	native	yes

Important Bird and Biodiversity Areas (IBA)

Country/Territory	IBA Name
Congo, The Democratic Republic of the	Forests west of Lake Edward
Congo, The Democratic Republic of the	Itombwe Mountains
Congo, The Democratic Republic of the	Kahuzi-Biega National Park
Congo, The Democratic Republic of the	Virunga National Park
Eritrea	Senafe
Ethiopia	Awi Zone
Ethiopia	Bale Mountains National Park
Ethiopia	Borana-Saynt (Denkoro Forest)
Ethiopia	Chilimo-Gaji forest
Ethiopia	Dessa'a forest
Ethiopia	Entoto Natural Park and escarpment
Ethiopia	Gefersa reservoir
Ethiopia	Guassa Plateau (Menz)
Ethiopia	Jibat forest
Ethiopia	Menagesha State Forest
Ethiopia	Mugo highlands
Ethiopia	Simien Mountains National Park
Ethiopia	Sululta plain
Ethiopia	Tiro Boter - Becho forest
Ethiopia	Yegof forest
Kenya	Aberdare Mountains
Kenya	Cherangani Hills
Kenya	Kikuyu Escarpment forest
Kenya	Mau forest complex
Kenya	Mount Elgon (Kenya)
Kenya	Mount Kenya
Rwanda	Nyungwe National Park
Rwanda	Volcans National Park
Saudi Arabia	Raydah escarpment
Saudi Arabia	Wadi Turabah and Jabal Ibrahim
South Sudan	Imatong mountains
South Sudan	Kidepo
Tanzania	Arusha National Park and vicinity
Tanzania	Lake Manyara
Tanzania	Mount Kilimanjaro
Tanzania	Ngorongoro Conservation Area
Tanzania	North Pare Mountains
Tanzania	Uluguru Mountains
Uganda	Echuya Forest Reserve
Uganda	Kidepo Valley National Park
Uganda	Mgahinga Gorilla National Park
Uganda	Mount Elgon National Park
Uganda	Ruwenzori (Rwenzori) Mountains National Park
Yemen	Haraz mountains
Yemen	High mountains of Ibb
Yemen	Jabal Bura
Yemen	Jabal Iraf
Yemen	Jabal Sumarah
Yemen	Kawkaban - Shibam
Yemen	Mahwit
Yemen	Wadi al-Birayn

Habitats & altitude

Habitat (level 1)	Habitat (level 2)	Importance	Occurrence
Forest	Subtropical/Tropical Moist Montane	major	resident
Shrubland	Subtropical/Tropical Dry	suitable	resident
Shrubland	Subtropical/Tropical High Altitude	suitable	resident
Altitude	360 - 5080 m	Occasional altitudinal limits	(min) 750 m

Recommended citation
BirdLife International (2024) Species factsheet: Brown Woodland-warbler Phylloscopus umbrovirens. Downloaded from https://datazone.birdlife.org/species/factsheet/brown-woodland-warbler-phylloscopus-umbrovirens on 23/12/2024.
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 23/12/2024.