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Location United Kingdom, Wales
Central coordinates 4o 2.53' West  53o 15.31' North
IBA criteria A4iii, B2, C4
Area 2,694 ha
Altitude 0 - 50m
Year of IBA assessment 2007

Royal Society for the Protection of Birds

Site description This large intertidal area, at the eastern end of the Menai Straits, contains a range of habitats including exposed and sheltered sands and mudflats diversified by freshwater streams. The IBA is important for wintering and passage wildfowl and waders.

Populations of IBA trigger species

Species Season Period Population estimate Quality of estimate IBA Criteria IUCN Category
Eurasian Curlew Numenius arquata passage  2001-2006  2,192 individuals  good  B2  Near Threatened 
Eurasian Curlew Numenius arquata winter  2001-2006  1,636 individuals  good  B2  Near Threatened 
A4iii Species group - waterbirds winter  2001-2006  19,575 individuals  good  A4iii, C4   

IBA Monitoring

2007 high favourable medium
Good - based on reliable and complete / representative data

Biological resource use fishing & harvesting aquatic resources - unintentional effects: large scale happening now whole area/population (>90%) slow but significant deterioration high
Human intrusions and disturbance recreational activities likely in short term (within 4 years) some of area/population (10-49%) moderate to rapid deterioration medium
Residential and commercial development tourism and recreation areas likely in long term (beyond 4 years) small area/few individuals (<10%) moderate to rapid deterioration low

Numenius arquata Eurasian Curlew 2000 2192 individuals 100 favourable
Numenius arquata Eurasian Curlew 1060 1636 individuals 100 favourable

Whole area of site (>90%) covered by appropriate conservation designation  A management plan exists but it is out of date or not comprehensive  Some limited conservation initiatives are in place  medium 

Protected areas

Protected area Designation Area (ha) Relationship with IBA Overlap with IBA (ha)  
Traeth Lafan Site of Special Scientific Interest 2,700 is identical to site 2,694  


IUCN habitat Habitat detail Extent (% of site)
Wetlands (inland) Mud flats and sand flats; Rivers and streams; Tidal rivers and enclosed tidal waters  -
Coastline Rock stacks and islets  -

Land use

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

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Recommended citation  BirdLife International (2016) Important Bird and Biodiversity Area factsheet: Traeth Lafan, Conwy Bay. Downloaded from on 25/10/2016

To provide new information to update this factsheet or to correct any errors, please email BirdLife