LC
White-spectacled Warbler Phylloscopus intermedius



Taxonomy

Taxonomic note

Phylloscopus intermedius (del Hoyo and Collar 2016) was previously listed as Seicercus affinis.

 

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
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 altitudinal migrant Forest dependency high
Land-mass type Average mass -
Range

Estimate Data quality
Extent of Occurrence (breeding/resident) 3,880,000 km2
Extent of Occurrence (non-breeding) 2,690,000 km2
Severely fragmented? no -
Population
Estimate Data quality Derivation Year of estimate
Population size unknown - - -
Population trend stable - suspected -
Generation length 3.1 years - - -

Population justification: The global population size has not been quantified, but the species is reported to be locally common (Baker 1997), while the population in China has been estimated at c.100-10,000 breeding pairs (Brazil 2009).

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 Breeding visitor Non-breeding visitor Passage migrant
Bangladesh extant native
Bhutan extant native
China (mainland) extant native
India extant native
Laos extant native
Myanmar extant native
Nepal extant native
Vietnam extant native

Important Bird and Biodiversity Areas (IBA)
Country/Territory IBA Name
Laos Eastern Bolikhamxay Mountains
Laos Nam Ha
Vietnam Bi Dup
Vietnam Chu Yang Sin
Vietnam Cong Troi
Vietnam Fan Si Pan
Vietnam Kon Ka Kinh
Vietnam Ngoc Linh
Vietnam Tuyen Lam

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   Occasional altitudinal limits  

Utilisation
Purpose Scale
Food - human subsistence, national
Pets/display animals, horticulture subsistence, national

Recommended citation
BirdLife International (2024) Species factsheet: White-spectacled Warbler Phylloscopus intermedius. Downloaded from https://datazone.birdlife.org/species/factsheet/white-spectacled-warbler-phylloscopus-intermedius 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.