LC
Black-capped Woodland-warbler Phylloscopus herberti



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 high
Land-mass type Average mass 9 g
Range

Estimate Data quality
Extent of Occurrence (breeding/resident) 157,000 km2 medium
Severely fragmented? no -
Population
Estimate Data quality Derivation Year of estimate
Population size unknown - - -
Population trend decreasing - suspected -
Generation length 2.43 years - - -

Population justification: The global population size has not been quantified, but the species is described as common or locally common (del Hoyo et al. 2006). This species is considered to have a high dependency on forest habitat, and tree cover is estimated to have declined by 3.2% within its mapped range over the past 10 years (Global Forest Watch 2022, using Hansen et al. [2013] data and methods disclosed therein). It is therefore tentatively suspected that this rate of cover loss may have led to a decline of between 1-19% in the species' population size over the same time frame, with a best estimate of reduction being less than 5%.

Trend justification:   .


Country/territory distribution
Country/Territory Presence Origin Resident Breeding visitor Non-breeding visitor Passage migrant
Cameroon extant native yes
Equatorial Guinea extant native yes
Nigeria extant native yes

Important Bird and Biodiversity Areas (IBA)
Country/Territory IBA Name
Cameroon Bakossi mountains
Cameroon Bali-Ngemba Forest Reserve
Cameroon Banyang Mbo Wildlife Sanctuary
Cameroon Mont Bana
Cameroon Mont Manengouba
Cameroon Mont Nlonako
Cameroon Mount Cameroon and Mokoko-Onge
Cameroon Mount Kupe
Cameroon Mount Rata and Rumpi Hills Forest Reserve
Equatorial Guinea Basilé Peak National Park
Equatorial Guinea Luba Caldera Scientific Reserve
Nigeria Gashaka-Gumti National Park
Nigeria Ngel-Nyaki Forest Reserve
Nigeria Obudu Plateau

Habitats & altitude
Habitat (level 1) Habitat (level 2) Importance Occurrence
Forest Subtropical/Tropical Moist Lowland suitable resident
Forest Subtropical/Tropical Moist Montane major resident
Altitude 700 - 2200 m Occasional altitudinal limits (min) 700 m

Recommended citation
BirdLife International (2024) Species factsheet: Black-capped Woodland-warbler Phylloscopus herberti. Downloaded from https://datazone.birdlife.org/species/factsheet/black-capped-woodland-warbler-phylloscopus-herberti 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.