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
| Boundary Bay - Roberts Bank - Sturgeon Bank (Fraser River Estuary) (BC017) | ||
|---|---|---|
| Nombre | Année | Saison |
| 23 472 | 1991 | Hiver |