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The site was identified as important in 2002 because it was regularly supporting significant populations of the species listed below, meeting ('triggering') IBA criteria.

Populations meeting IBA criteria ('trigger species'):

Species	Current IUCN Red List Category	Season	Year(s)	Population estimate at site	IBA criteria met
Black-faced Spoonbill Platalea minor	EN	winter	1995-2000	12-23 individuals	A1, A4i
Chinese Egret Egretta eulophotes	VU	passage	1996	1 individuals	A1
Spoon-billed Sandpiper Calidris pygmaea	CR	winter	2001	1 individuals	A1
Saunders's Gull Saundersilarus saundersi	VU	winter	1995-2001	77-147 individuals	A1, A4i

The current IUCN Red List category may differ from that which was valid at the time of IBA criteria assessment (2002).

State (condition of the trigger species' habitats)
Habitat	Habitat detail	Reference area (ha)	Actual area (ha)	Habitat quantity (% remaining)	Habitat quality (carrying capacity)	Result
Forest		13696	6255	-	-	unfavourable

Pressure (threats to the trigger species and/or their habitats)
Threat level 1	Threat level 2	Timing	Scope	Severity	Result
Agricultural expansion and intensification	marine and freshwater aquaculture - industrial aquaculture	happening now	some of area/population (10-49%)	moderate to rapid deterioration	high
Biological resource use	fishing & harvesting aquatic resources - unintentional effects: large scale	happening now	majority/most of area/population (50-90%)	moderate to rapid deterioration	high
Biological resource use	hunting & collecting terrestrial animals - unintentional effects (species is not the target)	happening now	some of area/population (10-49%)	moderate to rapid deterioration	high

Response (conservation actions taken for the trigger species and/or their habitats)
Protected-area designation	Management planning	Other conservation action	Result
Little/none of site covered (<10%)	No management planning has taken place	Very little or no conservation action taking place	negligible

For more information about IBA conservation status, please click here

Protected area (PA)	PA designation	PA area (ha)	Relationship of PA with IBA	Overlap of PA with IBA (ha)
Red River Delta	UNESCO-MAB Biosphere Reserve	105,557	protected area overlaps with site	0

Habitat (IUCN level 1)	Habitat detail	Extent (% of site)
Artificial/Aquatic & Marine	Other artificial wetlands	-
Forest	Mangrove forest (tropical)	-
Marine Neritic		-
Marine Intertidal		-

For more information about the IUCN Habitat classification, please click here.

Land-use	Extent (% of site)
fisheries/aquaculture	-
unknown	-

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Recommended citation
BirdLife International (2023) Important Bird Area factsheet: Thai Thuy. Downloaded from http://datazone.birdlife.org/site/factsheet/thai-thuy-iba-vietnam on 07/12/2023.