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Location Bangladesh
Central coordinates 89o 40.00' East  21o 50.00' North
IBA criteria A1, A4iii
Area 139,699 ha
Altitude 0 - 3m
Year of IBA assessment 2004

Populations of IBA trigger species

Species Season Period Population estimate Quality of estimate IBA Criteria IUCN Category
Lesser Adjutant Leptoptilos javanicus resident  2004  present  A1  Vulnerable 
Greater Adjutant Leptoptilos dubius non-breeding  2004  present  A1  Endangered 
Spot-billed Pelican Pelecanus philippensis non-breeding  2004  present  A1  Near Threatened 
Pallas's Fish-eagle Haliaeetus leucoryphus resident  2004  present  A1  Vulnerable 
Masked Finfoot Heliopais personatus resident  2004  present  A1  Endangered 
Spoon-billed Sandpiper Calidris pygmaea winter  2004  present  A1  Critically Endangered 
Indian Skimmer Rynchops albicollis winter  2004  present  A1  Vulnerable 
A4iii Species group - waterbirds 2004  20,000 individuals  unknown  A4iii   

Protected areas

Protected area Designation Area (ha) Relationship with IBA Overlap with IBA (ha)  
Sundarbans East Wildlife Sanctuary 31,226 protected area contained by site 31,226  
Sundarbans Reserved Forest Wetlands of International Importance (Ramsar) 601,700 protected area contains site 139,699  
Sundarbans South Wildlife Sanctuary 36,970 protected area contained by site 36,970  
Sundarbans West Wildlife Sanctuary 70,502 protected area contained by site 70,502  
The Sundarbans World Heritage Site 139,700 is identical to site 139,699  


IUCN habitat Habitat detail Extent (% of site)
Forest Mangrove forest (tropical)  -
Wetlands (inland) Estuarine waters; Intertidal mud, sand or salt flats  -

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Recommended citation  BirdLife International (2016) Important Bird and Biodiversity Area factsheet: Sunderbans (East, South, West Wildlife Sanctuaries). Downloaded from on 23/10/2016

To provide new information to update this factsheet or to correct any errors, please email BirdLife