Lesser Scaup
Scientific Name: Aythya affinis
Thresholds:
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 |
| 30,000 | 2012 | Fall |
| 32,500 - 70,000 | 1999 | Fall |
| 30,000 | 1998 | Fall |
| 16,000 - 21,000 | 1997 | Fall |
| 20,000 - 25,000 | 1993 | Fall |
| 40,000 | 1992 | Fall |
| Point Pelee (ON006) | ||
|---|---|---|
| Number | Year | Season |
| 29,600 | 2018 | Spring |
| 25,000 | 2012 | Fall |
| 25,000 | 2006 | Fall |
| 29,000 | 2002 | Winter |
| 28,000 | 2001 | Fall |
| 24,000 | 2000 | Winter |
| Oak Lake/Plum Lakes Area (MB011) | ||
|---|---|---|
| Number | Year | Season |
| 27,377 | 1974 | Fall |
| Old Crow Flats (YK001) | ||
|---|---|---|
| Number | Year | Season |
| 25,000 | 1995 | Summer |