Population status

American Wigeon
(Mareca americana)

The American Wigeon is primarily monitored on its core breeding range through the Waterfowl Breeding Population and Habitat Survey (WBPHS) in western Canada, as well as the Waterfowl Breeding Population Survey of the Central Interior Plateau of British Columbia. The American Wigeon is below its North American Waterfowl Management Plan (NAWMP) population goal of 3 million birds. In the Canadian Prairies, the population has been well below the NAWMP population goal of 1.2 million birds for decades. In the Western Boreal Region, the population has been above the NAWMP goal of 1.3 million birds since 2013, after a decade-long period during which it was below that objective (North American Waterfowl Management Plan 2012, CWS Waterfowl Committee 2017). Detailed information on the population status of waterfowl species is available in the Population Status of Migratory Game Birds in Canada report (summarized version). To obtain a copy of the full version of this report, including tables and graphs, please contact ec.scf-oismiggibiers-cws-miggamebirds.ec@canada.ca

 

Population goal and acceptable levels of variation

Species/groupGoalLower levelUpper level
CanadaLong-term average of the time seriesEqual to goalNot applicable

Waterfowl Breeding Population and Habitat Survey in Western Canada and the Northwestern United-States

Additional information on: Waterfowl Breeding Population and Habitat Survey in Western Canada and the Northwestern United-States

Table 1: Population trends by geographic area
Geographic areaTime PeriodAnnual trend Table 1 - footnote 1   Table 1 - footnote 2 Limits
LowerUpper
Total survey area Select to view graph of the geographic area: Total survey area 1955-2017; Waterfowl Breeding Population and Habitat Survey in Western Canada and the Northwestern United-States1955-20170.300.5
Canadian Prairies Select to view graph of the geographic area: Canadian Prairies 1955-2017; Waterfowl Breeding Population and Habitat Survey in Western Canada and the Northwestern United-States1955-2017-0.8-1.1-0.5
Western Boreal Forest Select to view graph of the geographic area: Western Boreal Forest 1955-2017; Waterfowl Breeding Population and Habitat Survey in Western Canada and the Northwestern United-States1955-20170.1-0.30.4
 

British Columbia Coastal Waterbird Survey

Additional information on: British Columbia Coastal Waterbird Survey

Table 2: Population trends by geographic area
Geographic areaTime PeriodAnnual Trend Table 2 - footnote 1 Limits
LowerUpper
British Columbia coast1999-2016-4.8-7.8-1.8
 

Cooperative Yukon roadside Waterfowl Breeding Population Survey

Additional information on: Cooperative Yukon roadside Waterfowl Breeding Population Survey

Table 3: Population trends by geographic area
Geographic areaTime PeriodAnnual trend Table 3 - footnote 1   Table 3 - footnote 2 Limits
LowerUpper
Southern Yukon Select to view graph of the geographic area: Southern Yukon 1991-2016; Cooperative Yukon roadside Waterfowl Breeding Population Survey1991-2016-5.9-8.8-17.4
 

Waterfowl Breeding Population Survey of the Central Interior Plateau of B.C.

Additional information on: Waterfowl Breeding Population Survey of the Central Interior Plateau of B.C.

Table 4: Population trends by geographic area
Geographic areaTime PeriodAnnual trend Table 4 - footnote 1   Table 4 - footnote 2 Limits
LowerUpper
British -Columbia Central Plateau2006-2017-1.6-6.63.7
 

Northwest Territories Boreal Waterfowl and Waterbirds Survey

Table 5: Population trends by geographic area
Geographic areaTime PeriodAnnual TrendLimits
LowerUpper
Northwest Territories Select to view graph of the geographic area: Northwest Territories 1985-2016; Northwest Territories Boreal Waterfowl and Waterbirds Survey1985-20160.9-23.8
 

References