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BirdLife International. 2004. Birds in Europe: population estimates, trends and conservation status. BirdLife International, Cambridge, U.K. 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. Escandell, V. 2007. SEO, Madrid, Spain. Herrando, S.; Brotons, L.; Guallar, S.; Sales, S.; Pons, P. 2009. Postfire forest management and Mediterranean birds: the importance of the logging remnants. Biodiversity and Conservation 18(8): 2153-2164. IUCN. 2012. IUCN Red List of Threatened Species (ver. 2012.1). Available at: http://www.iucnredlist.org. (Accessed: 19 June 2012). Shirihai, H.; Gargallo, G.; Helbig, A. J. 2001. Sylvia warblers: identification, taxonomy and phylogeny of the genus Sylvia. Helm, London. Tucker, G. M.; Heath, M. F. 1994. Birds in Europe: their conservation status. BirdLife International, Cambridge, U.K. Wotton, S.; Conway, G.; Eaton, M.; Henderson, I.; Grice, P. 2009. The status of the Dartford Warbler in the UK and Channel Islands in 2006. British Birds 102: 230-246. |
| Citation: | BirdLife International 2012. Sylvia undata. In: IUCN 2012. IUCN Red List of Threatened Species. Version 2012.2. <www.iucnredlist.org>. Downloaded on 24 May 2013. |
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