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Common Whitethroat Sylvia communis
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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 increasing, 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 is extremely large, and hence does not 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#.
Cramp, S.; Perrins, C. M. 1977-1994. Handbook of the birds of Europe, the Middle East and Africa. The birds of the western Palearctic. Oxford University Press, Oxford.

Population justification
Shirihai et al. (2001) estimated the population to exceed 10 million individuals, but in Europe, the breeding population is estimated to number 14-25 million breeding pairs, equating to 42-75 million individuals (BirdLife International 2004). Europe forms 50-74% of the global range, so a very preliminary estimate of the global population size is 56.8-150 million individuals, although further validation of this estimate is needed.

Trend justification
In Europe the overall trend from 1980-2011 was increasing, based on provisional data for 27 countries from the Pan-European Common Bird Monitoring Scheme (EBCC/RSPB/BirdLife/Statistics Netherlands).

Related state of the world's birds case studies

References
BirdLife International. 2001. Threatened birds of Asia: the BirdLife International Red Data Book. BirdLife International, Cambridge, U.K.

Crick, H. Q. P.; Dudley, C.; Glue, D.E.; Thomson, D.L. 1997. UK birds are laying earlier. Nature 388: 526.

Hüppop, O.; Hüppop, K. 2003. North Atlantic Oscillation and timing of spring migration in birds. Proceedings of the Royal Society of London Series B 270: 233-240.

IUCN. 2012. IUCN Red List of Threatened Species (ver. 2012.1). Available at: http://www.iucnredlist.org. (Accessed: 19 June 2012).

Jenni, L.; Kery, M. 2003. Timing of autumn bird migration under climate change: advances in long-distance migrants, delays in short-distance migrants. Proceedings of the Royal Society of London Series B 270(1523): 1467-1471.

Jonzén, N.; Lindén, A.; Ergon, T.; Knudsen, E.; Vik, J. O.,;Rubolini, D.; Piacentini, D.; Brinch, C.; Spina, F.; Karlsson, L.; Stervander, M.; Andersson, A.; Waldenström, J.; Lehikoinen, A.; Edvardsen, E.; Solvang, R.; Stenseth, N. C. 2006. Rapid advance of spring arrival dates in long-distance migratory birds. Science 312(5782): 1959-1961.

Shirihai, H.; Gargallo, G.; Helbig, A. J. 2001. Sylvia warblers: identification, taxonomy and phylogeny of the genus Sylvia. Helm, London.

Sparks, T. H.; Huber, K.; Bland, R. L.; Crick, H. Q. P.; Croxton, P. J.; Flood, J.; Loxton, R. G.; Mason, C. F.; Newnham, J.A.; Tryjanowski, P. 2007. How consistent are trends in arrival (and departure) dates of migrant birds in the UK? Journal of Ornithology 148: 503-511.

Tøttrup, A. P.; Thorup, K.; Rahbek, C. 2006. Patterns of change in timing of spring migration in North European songbird populations. Journal of Avian Biology 37: 84-92.

Zalakevicius, M.; Bartkeviciene, G.; Raudonikis, L.; Janulaitis, J. 2006. Spring arrival response to climate change in birds: a case study from eastern Europe. Journal of Ornithology 147: 326-343.

Further web sources of information
Detailed species account from Birds in Europe: population estimates trends and conservation status (BirdLife International 2004)

Detailed species account from Birds in Europe: population estimates, trends and conservation status (BirdLife International 2004)

Explore HBW Alive for further information on this species

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Text account compilers
Butchart, S., Ekstrom, J. & Symes, A.

Recommended citation
BirdLife International (2016) Species factsheet: Sylvia communis. Downloaded from http://www.birdlife.org on 27/08/2016. Recommended citation for factsheets for more than one species: BirdLife International (2016) IUCN Red List for birds. Downloaded from http://www.birdlife.org on 27/08/2016.

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 - Whitethroat (Sylvia communis) 0

Key facts
Current IUCN Red List category Least Concern
Family Sylviidae (Old World warblers)
Species name author Latham, 1787
Population size mature individuals
Population trend Increasing
Distribution size (breeding/resident) 14,100,000 km2
Country endemic? No
Links to further information
- Additional Information on this species
- 2015 European Red List assessment