LC
Greenish Warbler Phylloscopus trochiloides



Taxonomy

Taxonomic note

Phylloscopus trochiloides, P. nitidus and P. plumbeitarsus (del Hoyo and Collar 2016) were previously lumped as P. trochiloides (see AERC TAC [2003]; Cramp et al. [1977–1994]; Sibley and 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
2024 Least Concern
2016 Least Concern
2012 Not Recognised
2008 Not Recognised
2004 Not Recognised
2000 Not Recognised
1994 Not Recognised
1988 Not Recognised
Species attributes

Migratory status full migrant Forest dependency medium
Land-mass type Average mass -
Range

Estimate Data quality
Extent of Occurrence (breeding/resident) 18,700,000 km2
Extent of Occurrence (non-breeding) 7,170,000 km2
Severely fragmented? no -
Population
Estimate Data quality Derivation Year of estimate
Population size 20200000-38300000 mature individuals - estimated 2018
Population trend increasing - suspected -
Generation length 1.9 years - - -

Population justification: In Europe, the total population size is estimated at 8,080,000-15,300,000 mature individuals, with 4,040,000-7,630,000 breeding pairs (BirdLife International 2021), and comprises approximately 40% of the species' global range, so a very preliminary estimate of the global population size is between 20,200,000-38,300,000 mature individuals, although further validation of this estimate is desirable. In Europe, the species' population is considered to have undergone a suspected increase over three generations (10 years) (BirdLife International 2021) as its westward range expansion continues (Keller et a. 2020). Based on these data, and the proportion of the species' global range that this region holds, the global population size is considered to be increasing over three generations.


Country/territory distribution
Country/Territory Presence Origin Resident Breeding visitor Non-breeding visitor Passage migrant
Afghanistan extant native yes
Armenia extant native yes
Austria extant native yes
Azerbaijan extant native yes
Bahrain extant vagrant yes
Bangladesh extant native yes
Belarus extant native yes
Belgium extant vagrant
Bhutan extant native yes
Cambodia extant native yes
China (mainland) extant native yes
Czechia extant native yes
Denmark extant native yes yes
Estonia extant native yes
Faroe Islands (to Denmark) extant vagrant
Finland extant native yes
France extant vagrant
Georgia extant native yes
Germany extant native yes
Greece extant vagrant
Hong Kong (China) extant vagrant
India extant native yes yes
Iran, Islamic Republic of extant native yes
Ireland extant vagrant
Italy extant vagrant
Jordan extant vagrant yes
Kazakhstan extant native yes
Kuwait extant native yes
Kyrgyzstan extant native yes
Laos extant native yes
Latvia extant native yes
Lithuania extant native yes
Macao (China) extant native yes
Malaysia extant vagrant
Myanmar extant native yes
Nepal extant native yes
Netherlands extant vagrant
Norway extant vagrant yes
Oman extant native yes
Pakistan extant native yes
Poland extant native yes
Romania extant vagrant
Russia extant native yes
Russia (Asian) extant native yes
Russia (Central Asian) extant native yes
Russia (European) extant native yes
Saudi Arabia extant vagrant yes yes
Slovakia extant native yes
Spain extant vagrant
Sri Lanka extant native yes
Sweden extant native yes
Syria extant vagrant yes
Tajikistan extant native yes
Thailand extant native yes
Türkiye extant native yes
Turkmenistan extant native yes
Ukraine extant native yes
United Kingdom extant vagrant
Uzbekistan extant native yes
Vietnam extant native yes

Important Bird and Biodiversity Areas (IBA)
Country/Territory IBA Name

Habitats & altitude
Habitat (level 1) Habitat (level 2) Importance Occurrence
Artificial/Terrestrial Arable Land suitable non-breeding
Artificial/Terrestrial Plantations suitable non-breeding
Artificial/Terrestrial Rural Gardens suitable breeding
Artificial/Terrestrial Rural Gardens suitable non-breeding
Forest Boreal major breeding
Forest Subtropical/Tropical Mangrove Vegetation Above High Tide Level suitable non-breeding
Forest Subtropical/Tropical Moist Lowland suitable non-breeding
Forest Temperate suitable breeding
Shrubland Boreal suitable breeding
Shrubland Temperate suitable breeding
Wetlands (inland) Permanent Rivers/Streams/Creeks (includes waterfalls) suitable breeding
Altitude 0 - 4500 m Occasional altitudinal limits  

Recommended citation
BirdLife International (2024) Species factsheet: Greenish Warbler Phylloscopus trochiloides. Downloaded from https://datazone.birdlife.org/species/factsheet/greenish-warbler-phylloscopus-trochiloides on 14/12/2024.
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 14/12/2024.