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Phylloscopus inornatus 

Scope: Global
Language: English
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Taxonomy [top]

Kingdom Phylum Class Order Family
Animalia Chordata Aves Passeriformes Phylloscopidae

Scientific Name: Phylloscopus inornatus (Blyth, 1842)
Regional Assessments:
Common Name(s):
English Yellow-browed Warbler, Inornate Warbler
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.

Assessment Information [top]

Red List Category & Criteria: Least Concern ver 3.1
Year Published: 2016
Date Assessed: 2016-10-01
Assessor(s): BirdLife International
Reviewer(s): Butchart, S. & Symes, A.
Facilitator/Compiler(s): Ashpole, J, Butchart, S., Ekstrom, J.
Justification:
This species has an extremely large range, and hence does not approach the thresholds for Vulnerable under the range size criterion (extent of occurrence <20,000 km2 combined with a declining or fluctuating range size, habitat extent/quality, or population size and a small number of locations or severe fragmentation). The population trend appears to be stable, and hence the species does not approach the thresholds for Vulnerable under the population trend criterion (>30% decline over ten years or three generations). The population size has not been quantified, but it is not believed to approach the thresholds for Vulnerable under the population size criterion (<10,000 mature individuals with a continuing decline estimated to be >10% in ten years or three generations, or with a specified population structure). For these reasons the species is evaluated as Least Concern.
Previously published Red List assessments:

Geographic Range [top]

Countries occurrence:
Native:
Bhutan; Cambodia; China; Denmark; Germany; Hong Kong; India; Iran, Islamic Republic of; Japan; Kazakhstan; Korea, Democratic People's Republic of; Korea, Republic of; Kuwait; Kyrgyzstan; Lao People's Democratic Republic; Latvia; Malaysia; Mongolia; Myanmar; Nepal; Pakistan; Poland; Russian Federation (Central Asian Russia, Eastern Asian Russia, European Russia); Singapore; Taiwan, Province of China; Thailand; Viet Nam
Vagrant:
Algeria; Austria; Belgium; Bulgaria; Cyprus; Czech Republic; Egypt; Estonia; Faroe Islands; Finland; France; Gibraltar; Greece; Hungary; Iceland; Indonesia; Israel; Italy; Libya; Luxembourg; Malta; Morocco; Netherlands; Norway; Oman; Portugal; Saudi Arabia; Slovakia; Slovenia; Spain (Canary Is.); Sweden; Switzerland; Turkey; United Arab Emirates; United Kingdom
Additional data:
Continuing decline in area of occupancy (AOO):Unknown
Extreme fluctuations in area of occupancy (AOO):NoEstimated extent of occurrence (EOO) - km2:8170000
Continuing decline in extent of occurrence (EOO):UnknownExtreme fluctuations in extent of occurrence (EOO):No
Continuing decline in number of locations:Unknown
Extreme fluctuations in the number of locations:NoLower elevation limit (metres):1000
Upper elevation limit (metres):2440
Range Map:Click here to open the map viewer and explore range.

Population [top]

Population:The global population size has not been quantified. In Europe, the breeding population is estimated to number 5,000-20,000 pairs, which equates to 10,000-40,000 mature individuals (BirdLife International 2015), but Europe forms <5% of the global range.

Trend Justification:  The population is suspected to be stable in the absence of evidence for any declines or substantial threats. The European population trend is unknown (BirdLife International 2015).
Current Population Trend:Stable
Additional data:
Continuing decline of mature individuals:Unknown
Extreme fluctuations:NoPopulation severely fragmented:No
Continuing decline in subpopulations:Unknown
Extreme fluctuations in subpopulations:NoAll individuals in one subpopulation:No

Habitat and Ecology [top]

Habitat and Ecology:This species breeds in a variety of broadleaf woodlands, including birch (Betula), willow (Salix) and poplar (Populus) groves and the edges of conifer forests, particularly in silver fir (Abies). In the south of its range it is found in mixed birch and larch (Larix), spruce (Picea), stunted cedar (Cedrus), juniper (Juniperus) and rhododendrons (Rhododendron), alders (Alnus) and other shrubs. After breeding it may occur in dwarf birch and stunted bushes above the tree-line. It breeds in June and July and lays two to four eggs. The nest consists of dry grasses, pine needles, moss, strips of rotting wood, fine plant fibres and animal hair and is placed on the ground under the roots of a tree, a fallen branch, against a decaying tree stump or under a bush. It feeds mainly on small invertebrates but may also take some small seeds. The species is migratory, wintering in south-east Asia (Clement 2015).
Systems:Terrestrial
Continuing decline in area, extent and/or quality of habitat:Unknown
Generation Length (years):3.6
Movement patterns:Full Migrant

Conservation Actions [top]

Conservation Actions: Conservation Actions Underway
CMS Appendix II. Bern Convention Appendix II. There are currently no known conservation measures for this species within its European range.

Conservation Actions Proposed
No conservation measures are currently needed for this species within Europe.

Classifications [top]

1. Forest -> 1.1. Forest - Boreal
suitability:Suitable season:breeding major importance:Yes
1. Forest -> 1.5. Forest - Subtropical/Tropical Dry
suitability:Suitable season:non-breeding major importance:No
3. Shrubland -> 3.3. Shrubland - Boreal
suitability:Suitable season:breeding major importance:No
3. Shrubland -> 3.5. Shrubland - Subtropical/Tropical Dry
suitability:Suitable season:non-breeding major importance:No
14. Artificial/Terrestrial -> 14.3. Artificial/Terrestrial - Plantations
suitability:Suitable season:non-breeding major importance:No
14. Artificial/Terrestrial -> 14.4. Artificial/Terrestrial - Rural Gardens
suitability:Suitable season:non-breeding major importance:No

In-Place Research, Monitoring and Planning
  Action Recovery plan:No
  Systematic monitoring scheme:No
In-Place Land/Water Protection and Management
  Conservation sites identified:Yes, over entire range
  Occur in at least one PA:Yes
  Invasive species control or prevention:No
In-Place Species Management
  Successfully reintroduced or introduced beningly:No
  Subject to ex-situ conservation:No
In-Place Education
  Subject to recent education and awareness programmes:No
  Included in international legislation:Yes
  Subject to any international management/trade controls:No

Bibliography [top]

BirdLife International. 2015. European Red List of Birds. Office for Official Publications of the European Communities, Luxembourg.

Clement, P. 2015. Yellow-browed Warbler (Phylloscopus inornatus). In: del Hoyo, J., Elliott, A., Sargatal, J., Christie, D.A. and de Juana, E. (eds), Handbook of the Birds of the World Alive, Lynx Edicions, Barcelona.

IUCN. 2016. The IUCN Red List of Threatened Species. Version 2016-3. Available at: www.iucnredlist.org. (Accessed: 07 December 2016).


Citation: BirdLife International. 2016. Phylloscopus inornatus. The IUCN Red List of Threatened Species 2016: e.T22715310A87672009. . Downloaded on 22 September 2017.
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