BirdLife International. 2015. European Red List of Birds. Office for Official Publications of the European Communities, Luxembourg.
del Hoyo, J.; Elliott, A.; Christie, D. 2007. Handbook of the Birds of the World, vol. 12: Picathartes to Tits and Chickadees. Lynx Edicions, Barcelona, Spain.
EBCC. 2015. Pan-European Common Bird Monitoring Scheme. Available at: http://www.ebcc.info/index.php?ID=587.
Gosler, A., Clement, P. and Christie, D.A. 2013. Common Blue Tit (Cyanistes caeruleus). In: del Hoyo, J., Elliott, A., Sargatal, J., Christie, D.A. and de Juana, E. (eds), Handbook of the Birds of the World Alive, Lynx Edicions, Barcelona.
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Recommended citation
BirdLife International (2022) Species factsheet: Cyanistes caeruleus. Downloaded from
http://www.birdlife.org on 30/06/2022.
Recommended citation for factsheets for more than one species: BirdLife International (2022) IUCN Red List for birds. Downloaded from
http://www.birdlife.org on 30/06/2022.