Double-crested Cormorant
Scientific Name: Nannopterum auritum
Thresholds:
- Long Point Peninsula and Marshes (ON001)70,000 (max.)
- Prince Edward County South Shore (ON003)30,000 (max.)
- Leslie Street Spit (ON038)20,000 (max.)
- Presqu'ile Provincial Park (ON004)20,000 (max.)
- Balabas Island (MB099)17,997 (max.)
- Pelee Island Natural Areas (ON013)17,500 (max.)
- South Long Island (MB070)16,064 (max.)
- Pelee Island Archipelago (ON014)14,862 (max.)
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 |
| 13,000 | 2014 | Fall |
| 12,504 - 17,000 | 2013 | Fall |
| 18,000 - 25,000 | 2012 | Fall |
| 12,600 - 15,000 | 2007 | Fall |
| 15,000 - 25,000 | 2005 | Fall |
| 15,000 - 31,000 | 2004 | Fall |
| 70,000 | 2003 | Fall |
| Prince Edward County South Shore (ON003) | ||
|---|---|---|
| Number | Year | Season |
| 13,000 - 30,000 | 2008 | Fall |
| 16,000 | 2004 | Fall |
| 6,000 | 1995 | Fall |
| Leslie Street Spit (ON038) | ||
|---|---|---|
| Number | Year | Season |
| 20,000 | 2020 | Fall |
| 15,000 | 2017 | Fall |
| 3,196 | 1998 | Summer |
| 3,454 | 1997 | Summer |
| 2,632 | 1996 | Summer |
| 1,222 | 1995 | Summer |
| 1,536 | 1994 | Summer |
| 598 | 1993 | Summer |
| 286 | 1992 | Summer |
| 124 | 1991 | Summer |
| 20 | 1990 | Summer |
| 0 | 1989 | Summer |
| Presqu'ile Provincial Park (ON004) | ||
|---|---|---|
| Number | Year | Season |
| 20,000 | 2015 | Summer |
| 17,000 | 2000 | Summer |
| 8,030 | 1997 | Summer |
| 7,338 | 1996 | Summer |
| 5,238 | 1995 | Summer |
| 6,318 | 1994 | Summer |
| 6,082 - 10,000 | 1993 | Summer |
| 4,836 | 1992 | Summer |
| 3,592 | 1991 | Summer |
| Balabas Island (MB099) | ||
|---|---|---|
| Number | Year | Season |
| 17,997 | 2012 | Summer |
| 16,000 | 1999 | Summer |
| Pelee Island Natural Areas (ON013) | ||
|---|---|---|
| Number | Year | Season |
| 13,000 - 17,500 | 2016 | Fall |
| 14,150 | 2010 | Fall |
| 12,200 | 2006 | Fall |
| 0 | 1992 | Summer |
| 4 | 1990 | Summer |
| 22 | 1988 | Summer |
| 50 | 1981 | Summer |
| South Long Island (MB070) | ||
|---|---|---|
| Number | Year | Season |
| 16,064 | 1999 | Summer |
| Pelee Island Archipelago (ON014) | ||
|---|---|---|
| Number | Year | Season |
| 14,862 | 1997 | Summer |
| 3,904 | 1990 | Summer |
| 2,170 | 1988 | Summer |
| 114 | 1977 | Summer |
| 114 | 1976 | Summer |