The site was identified as important in 2004 because it was regularly supporting significant populations of the species listed below, meeting ('triggering') IBA criteria.
Populations meeting IBA criteria ('trigger species'):Species | Red List Category | Season | Year(s) | Population estimate at site | IBA criteria met |
---|---|---|---|---|---|
Masked Finfoot Heliopais personatus | CR | resident | 2004 | present | A1 |
Greater Adjutant Leptoptilos dubius | NT | non-breeding | 2004 | present | A1 |
Lesser Adjutant Leptoptilos javanicus | NT | resident | 2004 | present | A1 |
Spot-billed Pelican Pelecanus philippensis | NT | non-breeding | 2004 | present | A1 |
Spoon-billed Sandpiper Calidris pygmaea | CR | winter | 2004 | present | A1 |
Indian Skimmer Rynchops albicollis | EN | winter | 2004 | present | A1 |
Pallas's Fish-eagle Haliaeetus leucoryphus | EN | resident | 2004 | present | A1 |
A4iii Species group - waterbirds | n/a | - | 2004 | min 20,000 individuals | A4iii |
The current IUCN Red List category (shown above) may differ from that which was valid at the time of IBA criteria assessment (2004).
Protected area (PA) | PA designation | PA area (ha) | Relationship of PA with IBA | Overlap of PA with IBA (ha) |
---|---|---|---|---|
The Sundarbans | World Heritage Site (natural or mixed) | 139,700 | protected area overlaps with site | 139,699 |
Sundarbans Reserved Forest | Ramsar Site, Wetland of International Importance | 601,700 | protected area overlaps with site | 139,699 |
Sundarban West | Wildlife Sanctuary | 71,502 | protected area overlaps with site | 70,502 |
Sundarban South | Wildlife Sanctuary | 36,970 | protected area contained by site | 36,970 |
Sundarban East | Wildlife Sanctuary | 31,226 | protected area overlaps with site | 31,226 |
Habitat (IUCN level 1) | Habitat detail | Extent (% of site) |
---|---|---|
Forest | Mangrove forest (tropical) | - |
Marine Intertidal | - | |
Marine Neritic | - |
Recommended citation
BirdLife International (2024) Important Bird Area factsheet: Sunderbans (East, South, West Wildlife Sanctuaries). Downloaded from
https://datazone.birdlife.org/site/factsheet/sunderbans-(east-south-west-wildlife-sanctuaries)-iba-bangladesh on 19/03/2024.