Global
1% of the global abundance. This threshold is used to identify tigger species and IBA's under A4i/ii and A4iv categories
Regional/Continental
1% of the regional/continental population Estimate
Regional SAR
Solely IUCN Vulnerable listed species are presently eligible. The Regional threshold for these birds is static and standardized: Passeriformes (e.g. perching/songbirds) = 90 individuals (or 30 pairs); non-Passeriformes = 30 individuals (or 10 pairs).
Sub-regional/National SAR
The sub-regional/national SAR population threshold = 1% of the COSEWIC population estimate within the region (provinces/territories) the species is listed as being at risk. This threshold is used to identify trigger species and IBAs under criterion C1.
| Eastern Lake St. Clair (ON012) | ||
|---|---|---|
| Nombre | Année | Saison |
| 2 | 2014 | Printemps |
| 3 | 2012 | Été |
| 2 | 2006 | Printemps |
| 6 | 2003 | Hiver |
| 2 | 2003 | Été |
| 6 | 2002 | Été |
| 4 | 2002 | Printemps |
| 4 - 12 | 2001 | Hiver |
| 9 | 2001 | Été |
| 2 | 1999 | Été |
| 2 | 1997 | Printemps |
| 19 | 1996 | Hiver |
| 3 | 1996 | Printemps |
| 16 | 1995 | Hiver |
| 34 | 1995 | Été |
| 2 | 1995 | Printemps |
| 4 | 1994 | Hiver |
| 2 | 1992 | Été |
| 8 | 1992 | Printemps |
| 9 - 15 | 1991 | Hiver |
| 15 - 20 | 1990 | Hiver |
| 12 | 1990 | Automne |
| 10 | 1990 | Été |
| Wolfe Island (ON037) | ||
|---|---|---|
| Nombre | Année | Saison |
| 2 | 1999 | Hiver |
| 3 | 1997 | Hiver |
| 6 | 1996 | Hiver |
| 5 | 1995 | Hiver |
| 13 | 1993 | Hiver |
| 3 | 1992 | Hiver |
| 2 | 1991 | Hiver |
| 5 | 1990 | Hiver |
| Norfolk Forest Complex (ON009) | ||
|---|---|---|
| Nombre | Année | Saison |
| 12 | 2008 | Automne |
| Luther Marsh (ON059) | ||
|---|---|---|
| Nombre | Année | Saison |
| 4 | 2003 | Printemps |
| 4 | 2001 | Été |
| Long Point Peninsula and Marshes (ON001) | ||
|---|---|---|
| Nombre | Année | Saison |
| 2 | 2002 | Été |
| 2 | 2000 | Hiver |