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 (Nov 2002) http://www.nhm.ac.uk/nbn/
• 2. Mullarney, K., Svensson, L., Zetterstrom, D., & Grant, P.J. (1999) Collins Bird Guide. HarperCollins Publishers Ltd, London.
• 3. Lack, P. (1986) The Atlas of Wintering Birds in Britain and Ireland. T. & A. D. Poyser Ltd, Calton.
• 4. Gooder, J. (1982) Collins British Birds. William Collins Sons and Co Ltd, London.
• 5. JNCC Breeding Birds in the Wider Countryside (Nov 2002) http://www.bto.orgbirdtrends/wcrmutsw.htm
• 6. Walters, M (1994) Eyewitness Handbooks: Birds Eggs. Dorling Kindersley, London.
• 7. RSPB (2003) The population status of birds in the UK http://www.rspb.org.ukImages/5_20625.pdf
• 8. RSPB (2003): Pers. comm.
• 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, 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 olor
• Gill, Frank, and Minturn Wright. 2006. Birds of the World: Recommended English Names. ix + 259
• Granlund, J., McPeek, G., and Adams, R. The Birds of Michigan. Indiana University Press, Indianapolis, 1994.
• Hall SJ, Raffaelli D (1991) Food-web patterns: lessons from a species-rich web. J Anim Ecol 60:823–842
• Halton, W. http://www.airtime.co.uk/users/cygnus/muteswan.htm
• Huxham M, Beany S, Raffaelli D (1996) Do parasites reduce the chances of triangulation in a real food web? Oikos 76:284–300
• John Terres (1980) The Audubon Society Encyclopedia of North American Birds. Knopf: New York.
• M., Tharwat.   (1997).  ‘Birds Known to occur in Egypt’, National Biodiversity Unit, no. 8, Egyptian Environmental Affairs Agency, Cairo..  
• McCleery et al. (2008) Age-specific reproduction in a long-lived species: the combined effects of senescence and individual quality. Proc Biol Sci, 275:963-970.
• Myers, P., R. Espinosa, C. S. Parr, T. Jones, G. S. Hammond, and T. A. Dewey. 2006. The Animal Diversity Web (online). Accessed February 16, 2011 at http://animaldiversity.org. http://www.animaldiversity.org
• R., Porter., & D. Cottridge.   (2000).  Birds of Egypt and the Middle East, The American University in Cairo Press, Cairo..  
• Reilly, E. The Audubon Illustrated Handbook of American Birds. McGraw-Hill Book Company, New York, 1968.
• S., Baha El Din., J. Hobbs., W. Mullie., S. Goodman., & P. Meininger.   (1989).  The Birds of Egypt, Oxford University Press, New York..  
• Terres, J. The Audubon Society Encyclopedia of North American Birds. Alfred A. Knoph, New York, 1980.
• The Birds of North America Online (Online source)
• http://aztec.inre.asu.edu/phxzoo/swanmute.html