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Location Cambodia, Kampong Cham,Kampong Chhnang,Kampong Thom
Central coordinates 104o 53.00' East  12o 25.00' North
IBA criteria A1, A3, A4i
Area 109,081 ha
Altitude 4 - 16m
Year of IBA assessment 2003

BirdLife Indochina Programme (BirdLife Direct Action Programme)

Site description The IBA is located to the south of Kampong Thom town, within the inundation zone of Tonle Sap Lake. The IBA comprises and one of the largest remnant tracts of seasonally inundated grassland within the Tonle Sap floodplain, variably influenced on its eastern and northern fringes by deepwater rice. This habitat is mixed with scattered, but often extensive, areas of dense scrub, lotus swamps, sedge beds, and, in the dry season, numerous small to medium-sized ponds. At the height of the wet season (August-October), the whole IBA is inundated. Parts of the IBA lie within Tonle Sap Multiple Use Area, designated under the 1993 Royal Decree on Protected Areas, and Tonle Sap Biosphere Reserve.The IBA is a very important breeding site for Bengal Florican Houbaropsis bengalensis during the dry season (December to May). In the wet season (May to July), a number of non-breeding waterbirds visit the site, including adjutants Leptoptilos spp., Painted Stork Mycteria leucocephala and Asian Openbill Anastomus oscitans. In addition, the IBA supports a substantial wintering population of Manchurian Reed Warbler Acrocephalus tangorum, as well as small numbers of wintering Greater Spotted and Imperial Eagles Aquila clanga and A. heliaca. In addition, the largest flock of White-shouldered Ibis Pseudibis davisoni recorded in Cambodia in recent decades was observed here in 1999.

Key Biodiversity Other regionally significant birds species occur in the site such as Asian Openbill, Wooly -necked Stork, Brahminy Kite, Blak-shouldered Kite,Creasted Serpent Eagle, Grey -headed Fish-Eagle, Sport-billed Duck and Comb Duck.

Non-bird biodiversity: Long-tailed Macaque (Macaca fascicularis), Silvered Langur (Semnopithecus cristatus).

Populations of IBA trigger species

Species Season Period Population estimate Quality of estimate IBA Criteria IUCN Category
Greater Adjutant Leptoptilos dubius non-breeding  2001  rare  A1, A4i  Endangered 
Lesser Adjutant Leptoptilos javanicus non-breeding  2001  common  A1  Vulnerable 
Milky Stork Mycteria cinerea non-breeding  2001  rare  A1  Endangered 
Asian Openbill Anastomus oscitans non-breeding  2001  common  A4i  Least Concern 
White-shouldered Ibis Pseudibis davisoni non-breeding  2001  rare  A1  Critically Endangered 
Spot-billed Pelican Pelecanus philippensis non-breeding  2001  abundant  A1  Near Threatened 
Greater Spotted Eagle Clanga clanga non-breeding  2001  rare  A1  Vulnerable 
Eastern Imperial Eagle Aquila heliaca non-breeding  2001  rare  A1  Vulnerable 
Bengal Florican Houbaropsis bengalensis non-breeding  2001  rare  A1, A3  Critically Endangered 
Sarus Crane Antigone antigone non-breeding  2001  rare  A1  Vulnerable 
Manchurian Reed-warbler Acrocephalus tangorum winter  2001  unknown  A1  Vulnerable 
Plain-backed Sparrow Passer flaveolus resident  2001  common  A3  Least Concern 

IBA Monitoring

2009 high unfavourable low
Medium - based upon reliable but incomplete / partially representative data

Agriculture and aquaculture annual & perennial non-timber crops - small-holder farming happening now majority/most of area/population (50-90%) moderate to rapid deterioration high
Biological resource use fishing & harvesting aquatic resources - unintentional effects: subsistence/small scale happening now small area/few individuals (<10%) slow but significant deterioration low
Biological resource use hunting & collecting terrestrial animals - intentional use (species being assessed is the target) happening now some of area/population (10-49%) slow but significant deterioration medium

Grassland   0 0 poor (40-69%) good (> 90%) unfavourable

Most of site (50-90%) covered (including the most critical parts for important bird species)  No management planning has taken place  Substantive conservation measures are being implemented but these are not comprehensive and are limited by resources and capacity  low 


IUCN habitat Habitat detail Extent (% of site)
Shrubland Secondary scrub  -
Grassland Edaphic grassland; Secondary grassland  -
Wetlands (inland) Ephemeral wetlands; Freshwater lakes and pools; Permanent swamps; Rivers and streams  -
Artificial - terrestrial Perennial crops, orchards and groves; Rice paddies; Small settlements, rural gardens  -

Land use

Land-use Extent (% of site)
agriculture -
fisheries/aquaculture -
nature conservation and research -
other -
Notes: small settlements

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 nameDavidson, P. (2001) A further twelve new species for Cambodia. Cambodia Bird News 7: 26-35Goes, F. (ed.) (2000) Recent Sightings. Cambodia Bird News 6: 44-51Goes, F. and Davidson, P. (eds.) (2002) Recent Sightings. Cambodia Bird News 9: 47-59.Goes, F., Hong Chamnan, Davidson, P. and Poole, C.M. (2001). Bengal Florican (Houbaropsis bengalensis) Conservation in Kompong Thom Province, Cambodia. Phnom Penh: Wildlife Conservation Society Cambodia Program.Sam Veasna (1999) Survey for Sarus Crane and other endangered bird species in Southern Kompong Thom province, Cambodia. Unpublished report to Oriental Bird Club, UK.Seng Kim Hout et al. (2002) Field survey of seasonally flooded wetlands located in the east of Tonle Sap Lake in Kampong and Siem Reap Provinces. Unpublished report, Wildlife Conservation Society, Cambodia.

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Recommended citation  BirdLife International (2016) Important Bird and Biodiversity Area factsheet: Stung Sen / Santuk / Baray. Downloaded from on 24/10/2016

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