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
| Active Pass (BC015) | ||
|---|---|---|
| Nombre | Année | Saison |
| 4 000 | 1995 | Hiver |
| 2 100 | 1991 | Printemps |
| 2 300 | 1990 | Printemps |
| 3 700 | 1976 | Printemps |
| 7 000 | 1974 | Hiver |
| 4 000 | 1964 | Printemps |
| Boundary Bay - Roberts Bank - Sturgeon Bank (Fraser River Estuary) (BC017) | ||
|---|---|---|
| Nombre | Année | Saison |
| 2 741 | 2020 | Hiver |
| Chain Islets & Great Chain Island (BC045) | ||
|---|---|---|
| Nombre | Année | Saison |
| 2 000 | 1995 | Automne |