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Location Laos, Houaphan
Central coordinates 104o 37.00' East  20o 8.00' North
IBA criteria A1, A3
Area 69,000 ha
Altitude 300 - 1,800m
Year of IBA assessment 2003

BirdLife Indochina Programme (Country programme)



Site description The IBA is located inside Nam Xam Protected Area, in northern Lao P.D.R. The topography of the IBA is dominated by hills and low mountains, with a few of peaks over 1,600 m asl. The natural vegetation of the IBA is dominated by dry evergreen forest, with Fokienia forest at higher elevations, and mixed deciduous forest in some river valleys. There are also some areas of stunted, mossy upper montane forest at the highest elevations. In recent years, much of the Fokienia forest within the IBA has been severely degraded by commercial logging. Within Nam Xam Protected Area, there are also significant areas of agricultural land and secondary regrowth following shifting cultivation, although these are mainly excluded from the IBA. The IBA is though to support populations of Red-collared Woodpecker Picus rabieri, Great Hornbill Buceros bicornis and Beautiful Nuthatch Sitta formosa. The IBA may also support populations of Brown Hornbill Anorrhinus tickelli and Rufous-necked Hornbill Aceros nipalensis, although these populations may have been severely affected by hunting and may no longer be viable in the long term. The IBA is also important for the conservation of a number of primate species, including White-cheeked Crested Gibbon Hylobates leucogenys (Showler et al. 1998).

Populations of IBA trigger species

Species Season Period Population estimate Quality of estimate IBA Criteria IUCN Category
Red-vented Barbet Psilopogon lagrandieri breeding  2001  common  A3  Least Concern 
Green-eared Barbet Psilopogon faiostrictus breeding  2001  frequent  A3  Least Concern 
Moustached Barbet Psilopogon incognitus breeding  2001  frequent  A3  Least Concern 
Green-legged Partridge Arborophila chloropus breeding  2001  uncommon  A3  Least Concern 
Grey Peacock-pheasant Polyplectron bicalcaratum breeding  2001  common  A3  Least Concern 
Rufous-throated Partridge Arborophila rufogularis breeding  2001  common  A3  Least Concern 
Bar-backed Partridge Arborophila brunneopectus breeding  2001  frequent  A3  Least Concern 
Silver Pheasant Lophura nycthemera breeding  2001  uncommon  A3  Least Concern 
Pied Falconet Microhierax melanoleucos breeding  2001  uncommon  A3  Least Concern 
Blyth's Kingfisher Alcedo hercules resident  2001  rare  A3  Near Threatened 
Austen's Brown Hornbill Anorrhinus austeni resident  2001  frequent  A3  Near Threatened 
Megalaima asiatica breeding  2001  common  A3  Not Recognised 
Megalaima franklinii breeding  2001  frequent  A3  Not Recognised 
Stripe-breasted Woodpecker Dendrocopos atratus breeding  2001  uncommon  A3  Least Concern 
Red-collared Woodpecker Picus rabieri resident  2001  unknown  A3  Near Threatened 
Pale-headed Woodpecker Gecinulus grantia breeding  2001  rare  A3  Least Concern 
Bay Woodpecker Blythipicus pyrrhotis breeding  2001  frequent  A3  Least Concern 
Eared Pitta Pitta phayrei breeding  2001  uncommon  A3  Least Concern 
Blue-naped Pitta Pitta nipalensis breeding  2001  uncommon  A3  Least Concern 
Rusty-naped Pitta Pitta oatesi breeding  2001  frequent  A3  Least Concern 
Black-winged Cuckooshrike Coracina melaschistos breeding  2001  uncommon  A3  Least Concern 
Short-billed Minivet Pericrocotus brevirostris breeding  2001  uncommon  A3  Least Concern 
Grey Treepie Dendrocitta formosae breeding  2001  uncommon  A3  Least Concern 
Ratchet-tailed Treepie Temnurus temnurus breeding  2001  rare  A3  Least Concern 
Yellow-cheeked Tit Parus spilonotus breeding  2001  frequent  A3  Least Concern 
Sultan Tit Melanochlora sultanea breeding  2001  frequent  A3  Least Concern 
Black-throated Tit Aegithalos concinnus breeding  2001  common  A3  Least Concern 
Striated Bulbul Pycnonotus striatus breeding  2001  frequent  A3  Least Concern 
Sooty-headed Bulbul Pycnonotus aurigaster breeding  2001  frequent  A3  Least Concern 
Grey-eyed Bulbul Iole propinqua breeding  2001  frequent  A3  Least Concern 
Mountain Bulbul Hypsipetes mcclellandii breeding  2001  common  A3  Least Concern 
Asian Black Bulbul Hypsipetes leucocephalus breeding  2001  common  A3  Least Concern 
Grey-cheeked Warbler Seicercus poliogenys breeding  2001  frequent  A3  Least Concern 
Rufous-faced Warbler Abroscopus albogularis breeding  2001  common  A3  Least Concern 
Spot-breasted Laughingthrush Garrulax merulinus breeding  2001  rare  A3  Least Concern 
Red-billed Scimitar-babbler Pomatorhinus ochraceiceps breeding  2001  frequent  A3  Least Concern 
Streaked Wren-babbler Napothera brevicaudata breeding  2001  frequent  A3  Least Concern 
Rufous-cheeked Laughingthrush Garrulax castanotis breeding  2001  common  A3  Least Concern 
Red-faced Liocichla Liocichla phoenicea breeding  2001  rare  A3  Least Concern 
Spectacled Barwing Actinodura ramsayi breeding  2001  uncommon  A3  Least Concern 
Blue-winged Minla Minla cyanouroptera breeding  2001  frequent  A3  Least Concern 
Grey-cheeked Fulvetta Alcippe morrisonia breeding  2001  common  A3  Least Concern 
Indochinese Yuhina Yuhina torqueola breeding  2001  common  A3  Least Concern 
Black-chinned Yuhina Yuhina nigrimenta breeding  2001  frequent  A3  Least Concern 
Short-tailed Parrotbill Paradoxornis davidianus breeding  2001  rare  A3  Least Concern 
Pale-billed Parrotbill Paradoxornis atrosuperciliaris breeding  2001  rare  A3  Least Concern 
Rufous-headed Parrotbill Paradoxornis ruficeps breeding  2001  frequent  A3  Least Concern 
Beautiful Nuthatch Sitta formosa resident  2001  rare  A1, A3  Vulnerable 
Black-collared Starling Sturnus nigricollis breeding  2001  uncommon  A3  Least Concern 
Green Cochoa Cochoa viridis breeding  2001  frequent  A3  Least Concern 
Slaty-backed Forktail Enicurus schistaceus breeding  2001  frequent  A3  Least Concern 
Rufous-gorgeted Flycatcher Ficedula strophiata breeding  2001  frequent  A3  Least Concern 
White-gorgeted Flycatcher Ficedula monileger breeding  2001  uncommon  A3  Least Concern 
Hainan Blue-flycatcher Cyornis hainanus breeding  2001  frequent  A3  Least Concern 
Fujian Niltava Niltava davidi unknown  2001  rare  A3  Least Concern 
Orange-bellied Leafbird Chloropsis hardwickii breeding  2001  frequent  A3  Least Concern 
Fork-tailed Sunbird Aethopyga christinae breeding  2001  frequent  A3  Least Concern 
Black-throated Sunbird Aethopyga saturata breeding  2001  frequent  A3  Least Concern 
Streaked Spiderhunter Arachnothera magna breeding  2001  frequent  A3  Least Concern 

Protected areas

Protected area Designation Area (ha) Relationship with IBA Overlap with IBA (ha)  
Nam Xam National Biodiversity Conservation Area 70,000 protected area contains site 69,000  

Habitats

IUCN habitat Habitat detail Extent (% of site)
Forest   major

Land use

Land-use Extent (% of site)
nature conservation and research -
Notes: Within Nam Xam National Protected Area, there are also significant areas of agricultural land and secondary regrowth following shifting cultivation, although these are mainly excluded from the IBA.

Other biodiversity Showler et al. (1998) sighted one Marbled Cat P. marmorata walking down a disused logging track in mixed broadleaf evergreen/Fokienia forest at 1,350m on Phou Xang Khom at midday.A local guide siad Golden Cat C. temminckii presents in the area of Phou Xang Khom, but rare (Showler et al. 1998).Showler et al. (1998) recorded one species of primate: White-cheeked Crested Gibbon Hylobates leucogenys. Also two species of primate were reported by local villagers: Slow/Pygmy Loris Nycticebus coucang/pygmaeus and Assamese Macaque Macaca assamensis. An unidentified species, likely to be Bear Macaque M. arctoides, was reported by local villagers.The IBA supports the community of Fokienia hodginsii forest.

Further web sources of information 

Site account from Important Bird Areas in Lao P.D.R. (Ounekham and Inthapatha 2003)

References Showler, D. A., Davidson, P., Khounboline, K. and Salivong, K. (1998) A wildlife and habitat survey of Nam Xam National Biodiversity Conservation Area, Houaphanh Province, Lao P.D.R. Vientiane: CPAWM/WCS.

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Recommended citation  BirdLife International (2014) Important Bird Areas factsheet: Nam Xam. Downloaded from http://www.birdlife.org on 31/10/2014

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