Population information

Order name Anseriformes
Family name Anatidae
Scientific name Histrionicus histrionicus Common name Harlequin Duck
Population name E North America (non-bre)
Breeding range S Labrador, Newfoundland, S Quebec Non-breeding range Coastal NE Canada & USA
Red List Category Least Concern
Ramsar regions North America
Notes Birds breeding in E Canada and those breeding in Greenland were treated as separate populations, except in WPE3 when satellite tracking revealed many birds from Canada moult and winter in SW Greenland. However in WPE4, it was considered that there was no evidence of significant exchanges between the USA/Canadian wintering population and that of Greenland and these two populations were again separated on the basis of their wintering areas.

Conservation Framework

Conservation framework Notes
No conservation frameworks
Note:

Population size

Publication Start year End year Minimum Maximum Estimate quality Notes References Actions
WPE 4 0 0 1,800 1,800 [S5630] [R550]
WPE 1 0 0 1 1,000 [R122]
WPE 2 0 0 1 1,000 [R481]
WPE 5 0 0 1,800 1,800 [S8141] [R550]

Population trends

Publication Start year End year Trend Trend quality Notes References Actions
WPE 4 1993 2003 INC [R550]
WPE 1 0 0 Unknown
WPE 2 0 0 Unknown
WPE 5 1993 2003 INC [R550]

Population 1% level

Publication Yearset 1 percent Note
WPE 4 2006 18
WPE 1 1994 10
WPE 2 1997 10
WPE 5 2012 20

References

  • R550 - Robertson, G., and Thomas, P. (eds.) 2004. Harlequin Duck in Northwest Atlantic. Canadian Wildlife Service Occasional Paper (in press). Ottawa.
  • R122 - Chadwick, D.H. and Littlehales, B. 1993. Bird of white waters. National Geographic 185(5): 116-132.
  • R481 - Myers, J.E., Haas, G.H. and Kehoe, F.P. 1996. Population status of Harlequin Ducks in the North Atlantic Region. Unpubl. Rep.

Notes

  • S5630 - 629 estimated 10,000-30,000 for E North America and Greenland populations combined.
  • S8141 - 629 estimated 10,000-30,000 for E North America and Greenland populations combined.



Copyright Wetlands International 2012

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