Whooper swan  (Cygnus cygnus)

Authentication

This information is awaiting authentication by a species expert, and will be updated as soon as possible. If you are able to help please contact:
arkive@wildscreen.org.uk

References

  1. National Biodiversity Network Species Dictionary (January 2004):
    http://www.nhm.ac.uk/nbn
  2. Mullarney, K., Svensson, L., Zetterström, D. & Grant, P.J. (1999) Collins Bird Guide. HarperCollins Publishers Ltd, London.
  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