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Location Thailand, Krabi
Central coordinates 98o 51.00' East  7o 57.00' North
IBA criteria A1, A3, A4i
Area 11,400 ha
Altitude 0 - 200m
Year of IBA assessment 2004

Bird Conservation Society of Thailand

Site description The IBA comprises the estuary of the Krabi river, immediately upstream and downstream of Krabi town, on the west coast of peninsular Thailand. Mangroves cover c.10,200 ha, and have mostly been degraded by logging. Intertidal sand- and mudflats cover a further c.1,200 ha at the river mouth. The site also includes a number of limestone karst outcrops. The site is included within Krabi Estuary Ramsar Site, which was designated in 2001and covers 21,299 ha.

Populations of IBA trigger species

Species Season Period Population estimate Quality of estimate IBA Criteria IUCN Category
Chinese Egret Egretta eulophotes non-breeding  2004  present  A1  Vulnerable 
Masked Finfoot Heliopais personatus non-breeding  2004  present  A1  Endangered 
Spotted Greenshank Tringa guttifer winter  2004  present  A1, A4i  Endangered 
Lesser Crested Tern Thalasseus bengalensis winter  2004  present  A4i  Least Concern 
Common Tern Sterna hirundo winter  2004  present  A4i  Least Concern 

Protected areas

Protected area Designation Area (ha) Relationship with IBA Overlap with IBA (ha)  
Krabi Estuary Wetlands of International Importance (Ramsar) 21,299 protected area contains site 11,400  


IUCN habitat Habitat detail Extent (% of site)
Artificial - terrestrial   -
Coastline   -

Other biodiversity No information is available about other globally threatened species at the site.

References Bird Conservation Society of Thailand Bulletin 20(12) (December 2003). BirdLife International (1998) Proceedings of the Thailand IBA workshop, Bangkok, November 1998. Unpublished report. BirdLife International (2001) Threatened birds of Asia: the BirdLife International Red Data Book. Cambridge, UK: BirdLife International. Office of Environmental Policy and Planning (1999) Directory of internationally important wetlands in Thailand. Bangkok: Ministry of Science, Technology and Environment. (In Thai.) Ramsar Bureau website http//:

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Recommended citation  BirdLife International (2014) Important Bird Areas factsheet: Na Muang Krabi. Downloaded from on 18/09/2014

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