|Scientific Name:||Hippolais polyglotta|
|Species Authority:||(Vieillot, 1817)|
|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#.|
|Red List Category & Criteria:||Least Concern ver 3.1|
|Reviewer(s):||Butchart, S. & Symes, A.|
|Facilitator/Compiler(s):||Ekstrom, J., Butchart, S.|
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.
|Previously published Red List assessments:||
Native:Algeria; Andorra; Austria; Belgium; Burkina Faso; Cameroon; Côte d'Ivoire; Croatia; France; Gambia; Germany; Ghana; Gibraltar; Guinea; Guinea-Bissau; Italy; Liberia; Luxembourg; Mali; Mauritania; Morocco; Netherlands; Nigeria; Portugal; Senegal; Sierra Leone; Slovenia; Spain; Switzerland; Togo; Tunisia; United Kingdom; Western Sahara
Vagrant:Central African Republic; Cyprus; Czech Republic; Denmark; Greece; Iceland; Kenya; Libya; Malta; Niger; Norway; Poland; Sweden
Present - origin uncertain:Benin
|Continuing decline in area of occupancy (AOO):||Unknown|
|Extreme fluctuations in area of occupancy (AOO):||No|
|Estimated extent of occurrence (EOO) - km2:||1710000|
|Continuing decline in extent of occurrence (EOO):||Unknown|
|Extreme fluctuations in extent of occurrence (EOO):||No|
|Continuing decline in number of locations:||Unknown|
|Extreme fluctuations in the number of locations:||No|
|Range Map:||Click here to open the map viewer and explore range.|
|Population:||In Europe, the breeding population is estimated to number 1,000,000-3,000,000 breeding pairs, equating to 3,000,000-9,000,000 individuals (BirdLife International 2004). Europe forms 75-94% of the global range, so a very preliminary estimate of the global population size is 3,190,000-12,000,000 individuals, although further validation of this estimate is needed.
Trend Justification: The population is suspected to be increasing owing to a northerly and easterly range expansion (del Hoyo et al. 2006), although in Europe, trends since 1989 have been stable, based on provisional data for 21 countries from the Pan-European Common Bird Monitoring Scheme (EBCC/RSPB/BirdLife/Statistics Netherlands; P. Vorisek in litt. 2008).
|Current Population Trend:||Increasing|
|Citation:||BirdLife International. 2012. Hippolais polyglotta. The IUCN Red List of Threatened Species 2012: e.T22714912A39531540. http://dx.doi.org/10.2305/IUCN.UK.2012-1.RLTS.T22714912A39531540.en . Downloaded on 04 October 2015.|