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Location France, Pays de la Loire
Central coordinates 2o 26.00' West  47o 21.00' North
IBA criteria A4i, A4iii, B1i, B2, B3, C2, C3, C4, C6
Area 4,650 ha
Altitude 0 - 2m
Year of IBA assessment 2000

Ligue Pour La Protection des Oiseaux

Site description A brackish bay with associated marshes (including salinas), mudflats, beaches and sand-dunes, woodlands and heathland.

Key Biodiversity The site holds 20,000 or more waterbirds in winter, on a regular basis.

Populations of IBA trigger species

Species Season Period Population estimate Quality of estimate IBA Criteria IUCN Category
Northern Pintail Anas acuta winter  1997  201-610 individuals  B1i, C3  Least Concern 
Brent Goose Branta bernicla winter  1997  1,758-3,785 individuals  A4i, B1i, C3  Least Concern 
Common Shelduck Tadorna tadorna winter  1997  2,065-3,748 individuals  B1i, C3  Least Concern 
Northern Shoveler Spatula clypeata winter  1997  15-2,300 individuals  B1i, C3  Least Concern 
Greater Scaup Aythya marila winter  1997  4-62 individuals  B2  Least Concern 
Egretta garzetta winter  1997  522-1,902 individuals  A4i, B1i, C2  Not Recognised 
Egretta garzetta breeding  1997  77 breeding pairs  C6  Not Recognised 
Himantopus himantopus breeding  1996  113 breeding pairs  C6  Not Recognised 
Pied Avocet Recurvirostra avosetta winter  1997  633-2,000 individuals  A4i, B1i, B2, C2  Least Concern 
Pied Avocet Recurvirostra avosetta breeding  1997  175-178 breeding pairs  B3, C6  Least Concern 
Ruddy Turnstone Arenaria interpres winter  1997  693-1,240 individuals  A4i, B1i, C3  Least Concern 
Larus argentatus winter  1997  520-26,713 individuals  B1i  Not Recognised 
Common Tern Sterna hirundo breeding  1979  180-210 breeding pairs  C6  Least Concern 
Bluethroat Luscinia svecica breeding  1979  300-400 breeding pairs  C6  Least Concern 
A4iii Species group - waterbirds winter  1997  20,000-49,999 individuals  unknown  A4iii, C4   

Protected areas

Protected area Designation Area (ha) Relationship with IBA Overlap with IBA (ha)  
Marais salants de Guérande et du Més Wetlands of International Importance (Ramsar) 5,200 protected area overlaps with site 4,650  
Traicts du Croisic Hunting Reserve 550 protected area contained by site 550  


IUCN habitat Habitat detail Extent (% of site)
Forest Broadleaved deciduous woodland  -
Shrubland Heathland  -
Coastline Mud flats & sand flats; Salt marshes; Sand dunes & beaches  -
Sea Sea inlets and coastal features  -

Land use

Land-use Extent (% of site)
agriculture -
fisheries/aquaculture -
hunting -
tourism/recreation -
urban/industrial/transport -

Protection status National Partial International High550 ha of IBA covered by Hunting Reserve (Traicts du Groisic, 550 ha). 4,650 ha of IBA covered by Ramsar Site (Marais de Guérande, 5,200 ha). 550 ha of IBA covered by Special Protection Area (Traicts et Marais de Guérande, 550 ha).

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Recommended citation  BirdLife International (2016) Important Bird and Biodiversity Area factsheet: Traicts et marais salants de la Presqu'île Guérandaise. Downloaded from on 22/10/2016

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