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LC
Eastern Olivaceous Warbler Hippolais pallida

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.

Taxonomic source(s)
AERC TAC. 2003. AERC TAC Checklist of bird taxa occurring in Western Palearctic region, 15th Draft. Available at: http://www.aerc.eu/DOCS/Bird_taxa_of _the_WP15.xls.
Ottosson, U.; Bensch, S.; Svensson, L.; Waldenstr

Taxonomic note
Hippolais pallida (Sibley and Monroe 1990, 1993) has been split into H. pallida and H. opaca following Ottosson et al. (2005).

Distribution and population
This species breeds in North Africa, south-east Europe, parts of the Arabian Peninsula and central Asia; it winters south of the Sahara to East Africa.

Population justification
The global population size has not been quantified, but the species is described as fairly common to common in much of its range and locally abundant (del Hoyo et al. 2006), with estimates of 130,000-160,000 pairs in Europe and 1,500,000 pairs in Turkey (Svensson 2006).

Trend justification
The population is suspected to be stable in the absence of evidence for any declines or substantial threats.

References
del Hoyo, J.; Elliott, A.; Christie, D. 2006. Handbook of the Birds of the World, vol. 11: Old World Flycatchers to Old World Warblers. Lynx Edicions, Barcelona, Spain.

Svensson, S. 2006. Species composition and population fluctuations of alpine bird communities during 38 years in the Scandinavian mountain range. Ornis Svecica 16(4): 183-210.

Text account compilers
Butchart, S., Bird, J.

IUCN Red List evaluators
Butchart, S., Symes, A.

Recommended citation
BirdLife International (2014) Species factsheet: Hippolais pallida. Downloaded from http://www.birdlife.org on 12/07/2014. Recommended citation for factsheets for more than one species: BirdLife International (2014) IUCN Red List for birds. Downloaded from http://www.birdlife.org on 12/07/2014.

This information is based upon, and updates, the information published in BirdLife International (2000) Threatened birds of the world. Barcelona and Cambridge, UK: Lynx Edicions and BirdLife International, BirdLife International (2004) Threatened birds of the world 2004 CD-ROM and BirdLife International (2008) Threatened birds of the world 2008 CD-ROM. These sources provide the information for species accounts for the birds on the IUCN Red List.

To provide new information to update this factsheet or to correct any errors, please email BirdLife

To contribute to discussions on the evaluation of the IUCN Red List status of Globally Threatened Birds, please visit BirdLife's Globally Threatened Bird Forums.

Additional resources for this species

ARKive species - Eastern olivaceous warbler (Hippolais pallida) 0

Key facts
Current IUCN Red List category Least Concern
Family Sylviidae (Old World warblers)
Species name author (Ehrenberg, 1833)
Population size mature individuals
Population trend Stable
Distribution size (breeding/resident) 4,980,000 km2
Country endemic? No
Links to further information
- Additional Information on this species