Scientific Name: Aythya americana
Global
1% of the global population estimate. This threshold is used to identify trigger species and IBAs under categories A4i/ii and A4iv.
Regional/Continental
1% of the regional/continental population estimate.
Long Point Peninsula and Marshes (ON001) | ||
---|---|---|
Number | Year | Season |
14,762 - 166,700 | 2021 | Fall |
5,000 - 11,000 | 2020 | Winter |
11,910 - 20,000 | 2020 | Fall |
5,000 - 6,500 | 2020 | Spring |
5,000 | 2019 | Winter |
8,000 - 13,030 | 2019 | Fall |
10,000 | 2019 | Spring |
17,840 - 22,000 | 2018 | Fall |
5,000 - 10,500 | 2018 | Spring |
5,000 | 2018 | Winter |
5,000 - 30,800 | 2017 | Fall |
7,500 | 2017 | Spring |
5,000 - 12,000 | 2017 | Winter |
5,000 | 2016 | Winter |
7,500 - 76,030 | 2016 | Fall |
5,000 - 25,825 | 2015 | Winter |
36,700 - 49,000 | 2015 | Fall |
5,000 - 26,081 | 2014 | Winter |
25,115 - 46,200 | 2014 | Fall |
7,000 | 2014 | Spring |
33,500 - 35,000 | 2013 | Fall |
5,000 - 12,000 | 2013 | Spring |
7,547 - 12,000 | 2012 | Winter |
10,500 - 44,230 | 2012 | Fall |
9,500 | 2012 | Spring |
6,004 | 2011 | Winter |
20,000 | 2011 | Spring |
10,000 - 15,000 | 2009 | Fall |
10,400 | 2008 | Spring |
5,300 | 2006 | Fall |
7,013 | 2001 | Winter |
6,414 | 2000 | Winter |
16,228 | 1999 | Winter |
9,573 - 13,578 | 1998 | Fall |
13,464 - 18,931 | 1998 | Spring |
21,897 | 1998 | Winter |
10,089 | 1992 | Fall |
Long Island and Long Island Bay (MB085) | ||
---|---|---|
Number | Year | Season |
60,000 | 1977 | Fall |
Cumberland Marshes (SK102) | ||
---|---|---|
Number | Year | Season |
36,000 | 1972 | Summer |
Wolfe Island (ON037) | ||
---|---|---|
Number | Year | Season |
7,000 - 7,300 | 2020 | Fall |
4,704 | 2019 | Fall |
8,100 | 2018 | Fall |
5,100 - 15,050 | 2017 | Fall |
4,756 | 2017 | Spring |
7,000 | 2017 | Winter |
4,500 | 2016 | Fall |
8,000 - 14,470 | 2015 | Fall |
9,000 | 2011 | Fall |
5,986 - 7,000 | 2010 | Winter |
8,000 | 2010 | Fall |
12,000 - 16,000 | 2009 | Fall |
5,044 | 2006 | Winter |
3,700 | 1993 | Fall |
Eastern Lake St. Clair (ON012) | ||
---|---|---|
Number | Year | Season |
5,000 | 2016 | Spring |
12,002 | 2016 | Winter |
15,200 | 2007 | Winter |
Norfolk Forest Complex (ON009) | ||
---|---|---|
Number | Year | Season |
14,000 | 2000 | Fall |
Prince Edward County South Shore (ON003) | ||
---|---|---|
Number | Year | Season |
4,500 | 2021 | Winter |
10,000 | 2020 | Winter |
4,500 - 5,000 | 2017 | Winter |
8,000 | 2016 | Winter |
5,000 | 2012 | Winter |
Creston Valley (BC179) | ||
---|---|---|
Number | Year | Season |
5,000 | 2021 | Spring |
5,000 | 2019 | Spring |
5,000 | 2017 | Winter |
4,501 | 2015 | Spring |
5,000 | 2015 | Winter |
9,390 | 1990 | Fall |
6,314 | 1989 | Fall |
6,580 | 1988 | Summer |
7,930 | 1986 | Fall |
9,200 | 1984 | Fall |
Greater Rondeau Area (ON007) | ||
---|---|---|
Number | Year | Season |
7,500 | 2019 | Spring |
7,500 - 9,300 | 2001 | Winter |
Lower Detroit River (ON047) | ||
---|---|---|
Number | Year | Season |
9,011 | 1997 | Winter |
3,012 | 1996 | Winter |
1,005 | 1993 | Winter |
Presqu'ile Provincial Park (ON004) | ||
---|---|---|
Number | Year | Season |
5,500 - 7,000 | 2021 | Spring |
7,200 | 2019 | Fall |
5,000 | 2019 | Spring |
5,500 | 2017 | Winter |
8,000 | 2016 | Spring |
5,500 | 1998 | Spring |
Amherst Island (ON062) | ||
---|---|---|
Number | Year | Season |
7,500 | 2016 | Winter |
Luck Lake (SK003) | ||
---|---|---|
Number | Year | Season |
5,000 | 2016 | Fall |