• Summary
• Text account
• Data table and detailed info
• Distribution map
• Reference and further resources

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. and Simmons, K.E.L. (eds). 1977-1994. Handbook of the birds of Europe, the Middle East and Africa. The birds of the western Palearctic. Oxford University Press, Oxford.
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.

Population justification: In Europe, the breeding population is estimated to number 2,330,000-3,750,000 pairs, which equates to 4,670,000-7,490,000 mature individuals (BirdLife International 2015). Europe forms c.75% of the global range, so a very preliminary estimate of the global population size is 6,226,000-9,986,000 mature individuals, placed here in the range 6,000,000-9,999,999 mature 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 between 1989 and 2013 have been stable (EBCC 2015).

Recommended citation
BirdLife International (2022) Species factsheet: Hippolais polyglotta. Downloaded from http://www.birdlife.org on 27/01/2022. Recommended citation for factsheets for more than one species: BirdLife International (2022) IUCN Red List for birds. Downloaded from http://www.birdlife.org on 27/01/2022.