LC
Tytler's Leaf-warbler Phylloscopus tytleri



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
2022 Least Concern
2016 Near Threatened C1
2012 Near Threatened C1
2008 Near Threatened C1
2004 Near Threatened
2002 Near Threatened
2000 Lower Risk/Least Concern
1994 Lower Risk/Near Threatened
1988 Lower Risk/Least Concern
Species attributes

Migratory status full migrant Forest dependency Medium
Land mass type Land-mass type - continent
Average mass -
Distribution

Estimate Data quality
Extent of Occurrence breeding/resident (km2) 330,000 medium
Extent of Occurrence non-breeding (km2) 381,000 medium
Number of locations -
Severely Fragmented -
Population and trend
Value Data quality Derivation Year of estimate
No. of mature individuals unknown not applicable not applicable 0
Population trend Unknown poor not applicable -
Decline (3 years/1 generation past) - - -
Decline (5 years/1 generation past) - - -
Decline (10 years/1 generation past) - - -
Decline (10 years/3 generation future) - - -
Decline (10 years/3 generation past and future) - - -
Number of subpopulations 1 - - -
Percentage in largest subpopulation 100 - - -

Population justification: The global population size has not been quantified, but the species is described as scarce or locally common (del Hoyo et al. 2006).

Trend justification: Much uncertainty. Remote sensing data (Global Forest Watch [2021], using Hansen et al. [2013] data and methods disclosed therein) indicate that on this species' remote breeding grounds, forest loss has occurred at a negligible rate over the past 20 years. In its non-breeding range, forest loss has also been slow (equivalent to 2% over the past 10 years) and as such a continuing decline in mature individuals cannot be inferred. However, there are reports of increasing anthropogenic pressures in its breeding range in response to increasing human and livestock populations (Arun P. Singh in litt. 2022, J. Eaton in litt. 2022), although data from India between 2006-2007 and 2019 suggest there has been no decline (Arun P. Singh in litt. 2022).


Country/territory distribution
Country/Territory Occurrence status Presence Resident Breeding Non-breeding Passage
Afghanistan N Extant Yes
India N Extant Yes Yes Yes
Nepal N Extant Yes
Pakistan N Extant Yes

Important Bird and Biodiversity Areas (IBA)
Country/Territory IBA Name
Afghanistan Pech and Waygal valleys
Pakistan Machiara National Park
Pakistan Margalla Hills National Park
Pakistan Kargah Wildlife Sanctuary
Pakistan Deosai National Park
Pakistan Palas valley
India Dhauludhar Wildlife Sanctuary and McLeod Gunj
India Dachigam National Park
India Overa-Aru Wildlife Sanctuary
India Nelliyampathy (Nemmara Division)
India Bhimashankar Wildlife Sanctuary
India INS - Shivaji and adjoining areas, Lonavla
India Rajaji National Park
Nepal Khaptad National Park

Habitats & altitude
Habitat (level 1) Habitat (level 2) Importance Occurrence
Forest Subtropical/Tropical Dry suitable non-breeding
Forest Temperate major breeding
Altitude 2400 - 3600 m Occasional altitudinal limits (min) 900 m

Threats & impact
Threat (level 1) Threat (level 2) Impact and Stresses
Agriculture & aquaculture Livestock farming & ranching - Small-holder grazing, ranching or farming Timing Scope Severity Impact
Ongoing Majority (50-90%) Causing/Could cause fluctuations Medium Impact: 6
Stresses
Ecosystem degradation, Ecosystem conversion
Biological resource use Gathering terrestrial plants - Unintentional effects (species is not the target) Timing Scope Severity Impact
Ongoing Minority (<50%) Causing/Could cause fluctuations Low Impact: 5
Stresses
Ecosystem degradation
Biological resource use Logging & wood harvesting - Unintentional effects: (large scale) [harvest] Timing Scope Severity Impact
Ongoing Minority (<50%) Causing/Could cause fluctuations Low Impact: 5
Stresses
Ecosystem degradation
Biological resource use Logging & wood harvesting - Unintentional effects: (subsistence/small scale) [harvest] Timing Scope Severity Impact
Ongoing Majority (50-90%) Causing/Could cause fluctuations Medium Impact: 6
Stresses
Ecosystem degradation
Natural system modifications Dams & water management/use - Dams (size unknown) Timing Scope Severity Impact
Ongoing Minority (<50%) Causing/Could cause fluctuations Low Impact: 5
Stresses
Ecosystem degradation, Ecosystem conversion
Natural system modifications Fire & fire suppression - Increase in fire frequency/intensity Timing Scope Severity Impact
Ongoing Minority (<50%) Causing/Could cause fluctuations Low Impact: 5
Stresses
Ecosystem degradation
Transportation & service corridors Roads & railroads Timing Scope Severity Impact
Ongoing Minority (<50%) Causing/Could cause fluctuations Low Impact: 5
Stresses
Ecosystem degradation, Ecosystem conversion

Recommended citation
BirdLife International (2022) Species factsheet: Phylloscopus tytleri. Downloaded from http://www.birdlife.org on 17/08/2022. Recommended citation for factsheets for more than one species: BirdLife International (2022) IUCN Red List for birds. Downloaded from http://www.birdlife.org on 17/08/2022.