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Location Cambodia, Sesan,Stung Treng
Central coordinates 106o 18.00' East  13o 59.00' North
IBA criteria A1, A2, A4i
Area 14,116 ha
Altitude 44 - 108m
Year of IBA assessment 2003

BirdLife Indochina Programme (Country programme)

Site description The IBA comprises the stretch of the Sekong River from the international border with Laos to its confluence with Mekong River. Along this stretch of the river, there are many different habitats, many of which can be catagorised as channel mosaics of rock and sand islands with riverine scrub. There are no stretches dominated by extensive sandbars, and significant stretches are slow-moving and relatively featureless. For much of its length, the Sekong River is fringed by a belt of gallery forest, about 100 m wide, which is significantly taller than the adjacent deciduous dipterocarp forest, and contains a high proportion of broadleaf evergreen trees. However this has been degraded or cleared for cultivation in many areas.The IBA supports a suite of bird species restricted to wide, lowland rivers, including River Lapwing Vanellus duvaucelii, Small Pratincole Glareola lactea, Great Thick-knee Esacus recurvirostris and River Tern Sterna aurantia. In addition, the IBA supports Mekong Wagtail Motacilla samveasnae, a recently described species, which is thought to be endemic to the Mekong River and its major tributaries. Furthermore, at certain times of the year, the IBA may be important for a number of large waterbirds, including Giant Ibis Pseudibis gigantea.

Populations of IBA trigger species

Species Season Period Population estimate Quality of estimate IBA Criteria IUCN Category
Green Peafowl Pavo muticus resident  2002  present  A1  Endangered 
Giant Ibis Thaumatibis gigantea resident  2002  uncommon  A1, A4i  Critically Endangered 
White-rumped Vulture Gyps bengalensis non-breeding  2002  uncommon  A1  Critically Endangered 
Mekong Wagtail Motacilla samveasnae resident  2002  common  A2  Near Threatened 


IUCN habitat Habitat detail Extent (% of site)
Forest Dry deciduous forest (tropical); Lowland evergreen rain forest (tropical); Semi-evergreen rain forest (tropical)  -
Wetlands (inland) Riverine floodplains; Rivers and streams  -
Rocky areas   -

Land use

Land-use Extent (% of site)
agriculture -
Notes: permanent and shifting agriculture
urban/industrial/transport -
Notes: small settlements

Other biodiversity Long-tailed Macaque (Macaca fascicularis), Silvered Langur (Semnopithecus cristatus).Asiatic Softshell Turtle (Amyda cartilaginea), Asian Giant Softshell (Pelochelys cantorii).

Further web sources of information 

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

References Davidson, P., Poole, C.M. and J.W. Duckworth 2001. Mekong Wagtail Motacilla samvaesnae: the great river's only known avian endemic. Bull. Oriental Bird Club 34: 56-59.

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Recommended citation  BirdLife International (2014) Important Bird Areas factsheet: Sekong River. Downloaded from on 20/10/2014

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