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Location Cambodia, Sihanoukville
Central coordinates 103o 51.00' East  10o 37.00' North
IBA criteria A1
Area 13,790 ha
Altitude 0 - 153m
Year of IBA assessment 2003

BirdLife Indochina Programme (BirdLife Direct Action Programme)

Site description The IBA comprises the estuary of the Kampong Smach River, which flows into the Gulf of Thailand to the west of Bokor National Park. At the mouth of the river there are extensive mangroves and intertidal mudflats, while, upriver, there are stands of Melaleuca and Nypa. The mangrove along the western side of the estuary has been significantly reduced by land reclamation and conversion to rice agriculture but that on the eastern side is in a better condition, with stands of mature mangrove. The IBA is an important site for migratory waterbirds, including Asian Dowitcher Limnodromus semipalmatus. In addition, the IBA supports a number of large waterbirds during the non-breeding season, including Lesser Adjutant Leptoptilos javanicus, Painted Stork Mycteria leucocephala, Milky Stork M. cinerea and Spot-billed Pelican Pelecanus philippensis. Most signficantly, there is a record of 22 Greater Adjutant L. dubius from 1994, although there have been no subsequent records, and the species may not regularly occur in significant numbers.

Key Biodiversity A large numbers of redshank and greenshank, and smaller numbers of Egret sp. And Pond Heros were found feeding as well as 42 Great Crested Terns roosting on a mudflat.

Populations of IBA trigger species

Species Season Period Population estimate Quality of estimate IBA Criteria IUCN Category
Greater Adjutant Leptoptilos dubius non-breeding  1998  rare  A1  Endangered 
Lesser Adjutant Leptoptilos javanicus non-breeding  1998  rare  A1  Vulnerable 
Milky Stork Mycteria cinerea non-breeding  1998  rare  A1  Endangered 
Spot-billed Pelican Pelecanus philippensis non-breeding  1998  rare  A1  Near Threatened 

Protected areas

Protected area Designation Area (ha) Relationship with IBA Overlap with IBA (ha)  
Preah Monivong National Park 142,317 protected area is adjacent to site 0  


IUCN habitat Habitat detail Extent (% of site)
Forest Mangrove forest (tropical)  -
Artificial - terrestrial Perennial crops, orchards and groves; Rice paddies; Small settlements, rural gardens  -
Coastline   -

Land use

Land-use Extent (% of site)
agriculture -
fisheries/aquaculture -
urban/industrial/transport -
Notes: small settlements

Protection status Adjacent to Bokor National Park

Further web sources of information 

Site account from Directory of Important Bird Areas in Cambodia: key sites for conservation (Seng Kim Hout 2003)

References Document nameEdwards, P.J. (1996) Cambodia wetlands ornithological survey. Xenus Ecology. Newmarket, UK.Edwards, P.J. (1996) Recent waterbird surveys in Cambodia. Forktail 15: 29-42.Goes, F. Tan, S. and Ros, B. (1998) Preliminary bird survey for cluster of three National Parks in southern Cambodia. European Commission Support Program to the Environmental Sector in Cambodia (SPEC). Phnom Penh.Mundkur, T., Carr, P., Sun Hean and Chhim Somean (1995) Surveys for large waterbirds in Cambodia. March - April 1994. Cambridge, UK: IUCN/SSC.

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Recommended citation  BirdLife International (2016) Important Bird and Biodiversity Area factsheet: Stung Kampong Smach. Downloaded from on 25/10/2016

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