Population information

Order name Anseriformes
Family name Anatidae
Scientific name Cygnus buccinator Common name Trumpeter Swan
Population name Pacific
Breeding range Alaska, W Canada Non-breeding range Coastal S Alaska, British Colombia & NW USA
Red List Category Least Concern
Ramsar regions North America
Notes

Conservation Framework

Conservation framework Notes
No conservation frameworks
Note:

Population size

Publication Start year End year Minimum Maximum Estimate quality Notes References Actions
WPE 3 0 0 14,200 14,200 [R114]
WPE 4 0 0 23,700 23,700 [S3524] [R477]
WPE 2 0 0 16,300 16,300 [R115]
WPE 1 0 0 13,346 13,346 [R612]
WPE 5 2010 2010 26,700 26,800 Expert opinion [S6412] [R1173]

Population trends

Publication Start year End year Trend Trend quality Notes References Actions
WPE 3 1968 2000 INC [R113]
WPE 4 1968 2000 INC [R113]
WPE 2 1980 1990 INC [R115]
WPE 1 1983 1993 INC [R612]
WPE 5 2005 2010 INC [R1173]

Population 1% level

Publication Yearset 1 percent Note
WPE 3 2002 140
WPE 4 2006 240
WPE 2 1997 160
WPE 1 1994 130
WPE 5 2012 270

References

  • R114 - Caithamer, D.F. (Compiler). 2001. Trumpeter Swan population status, 2000. U.S. Fish Wildlife Service, Division of Migratory Bird Managment, Laurel, MD.
  • R113 - Caithamer, D.F. (Comp.). 1995. Survey of Trumpeter Swans in North America. U.S. Fish Wildl. Serv., Office of Mig. Bird Mgmt., Patuxtent Wildlife Research Center, Laurel, MD.
  • R477 - Moser, T.J. 2006. The 2005 North American Trumpeter Swan Survey. US Fish and Wildlife Service, Denver, Colorado
  • R115 - Callaghan, D.A. and Green, A.J. 1993. Wildfowl at risk, 1993. Wildfowl 44: 149-169.
  • R612 - Subcommittee on Pacific coast Trumpeter Swans. 1993. Pacific Flyway Management Plan for the Pacific Coast Population of Trumpeter Swans. Pacific Flyway Study Committee. [c/o USFWS, MBMO] Portland, Oregon. Unpubl. Report.
  • R1173 - Trumpeter Swan Society, The: http://www.trumpeterswansociety.org. Accessed: April 2012.

Notes

  • S3524 - 483: 23,692 counted in February 2005.
  • S6412 - 20,779 adults and 6,011 cygnets.



Copyright Wetlands International 2012

Citation: Wetlands International (). "Waterbird Population Estimates" . Retrieved from wpe.wetlands.org on