The following bibliography has been generated by bringing together all references provided by our content partners. There may be duplication.

References

• 1. National Biodiversity Network Species Dictionary (January 2004) http://www.nhm.ac.uk/nbn
• 1996. database, NODC Taxonomic Code
• 2. Mullarney, K., Svensson, L., Zetterström, D. & Grant, P.J. (1999) Collins Bird Guide. HarperCollins Publishers Ltd, London.
• 2006. website, Zoonomen - Zoological Nomenclature Resource, 2006.12.10
• 2006. website, AOU Check-List (07-2006)
• 3. RSPB A-Z of Birds- whooper swan (February 2004) http://www.rspb.org.uk/birds/guide/w/whooperswan/index.asp
• 4. JNCC Special Protection Areas for whooper swan (February 2004) http://www.jncc.gov.uk/UKSPA/Species/accounts/A6-16.pdf
• 5. Lack. P. (1986) The Atlas of wintering birds in Britain and Ireland. T & A D Poyser Ltd, London.
• 6. Holden, P. & Sharrock, J.T.R. (2002) The RSPB Guide to British Birds. Pan Macmillan, London.
• 7. Birds of Britain (February 2004) http://www.birdsofbritain.co.uk/bird-guide/whooper-swan.htm
• Adriaens, P. (2012). Cygnus cygnus (Linnaeus, 1758). Accessed through: World Register of Marine Species at http://www.marinespecies.org/aphia.php?p=taxdetails&id=159089 on 2013-03-02
• B., Bruun., & S. Baha El Din.   (1985).  Common Birds of Egypt, The American University in Cairo Press, Cairo..  
• Banks, R. C., R. W. McDiarmid, A. L. Gardner, and W. C. Starnes. 2003. Checklist of Vertebrates of the United States, the U.S. Territories, and Canada
• Banks, R. C., R. W. McDiarmid, A. L. Gardner, and W. C. Starnes. 2003. Checklist of Vertebrates of the United States, the U.S. Territories, and Canada
• Banks, R. C., R. W. McDiarmid, and A. L. Gardner. 1987. Checklist of Vertebrates of the United States, the U.S. Territories, and Canada. Resource Publication, no. 166
• Banks, R. C., R. W. McDiarmid, and A. L. Gardner. 1987. Checklist of Vertebrates of the United States, the U.S. Territories, and Canada. Resource Publication, no. 166. 79
• BirdLife International 2009. Cygnus cygnus
• Clements, J. F., T. S. Schulenberg, M. J. Iliff, B.L. Sullivan, C. L. Wood, and D. Roberson. 2012. The eBird/Clements checklist of birds of the world: Version 6.7. Downloaded from http://www.birds.cornell.edu/clementschecklist/downloadable-clements-checklist
• EURING list of longevity records for European birds (Online source)
• Gill, Frank, and Minturn Wright. 2006. Birds of the World: Recommended English Names
• Gill, Frank, and Minturn Wright. 2006. Birds of the World: Recommended English Names. ix + 259
• Kedra, M. (2010). A Checklist of marine species occurring in Polish marine waters, compiled in the framework of the PESI EU FP7 project.
• Linnaeus, Syst. Nat. ed. 10,Syst. Nat. ed. 10, 17581: 122.
• Linnaeus, Syst. Nat., ed. 10,Syst. Nat., ed. 10, 17581: 122.
• Linnaeus, Unknown,Syst. Nat., ed., 10, 17581: 122.
• MEDIN (2011). UK checklist of marine species derived from the applications Marine Recorder and UNICORN, version 1.0.  
• Müller, Y. (2004). Faune et flore du littoral du Nord, du Pas-de-Calais et de la Belgique: inventaire. [Coastal fauna and flora of the Nord, Pas-de-Calais and Belgium: inventory]. Commission Régionale de Biologie Région Nord Pas-de-Calais: France. 307 pp.
• North-West Atlantic Ocean species (NWARMS)
• Orrell T. (custodian) (2013). ITIS Global: The Integrated Taxonomic Information System (version Sept 12). In: Species 2000 & ITIS Catalogue of Life, 11th March 2013 (Roskov Y., Kunze T., Paglinawan L., Orrell T., Nicolson D., Culham A., Bailly N., Kirk P., Bourgoin T., Baillargeon G., Hernandez F., De Wever A., eds). Digital resource at www.catalogueoflife.org/col/. Species 2000: Reading, UK.
• Ramos, M. (ed.). 2010. IBERFAUNA. The Iberian Fauna Databank
• Zheng Zuoxin et al., FAUNA SINICA AVES Vol. 2: Anseriformes,FAUNA SINICA AVES Vol. 2: Anseriformes, 1979.
• Zheng Zuoxin, BIRDS OF THE WORLD(Latin, Chinese and English names),BIRDS OF THE WORLD(Latin, Chinese and English names), 1989.
• 郑作新, 世界鸟类名称(拉丁文、汉文、英文对照),世界鸟类名称(拉丁文、汉文、英文对照), 1989.
• 郑作新等, 《中国动物志》鸟纲 第二卷 雁形目,北京:科学出版社, 1979: 1-140.
• 郑作新等, 中国动物志.鸟纲第二卷.雁形目,中国动物志.鸟纲第二卷.雁形目, 1979.