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Location France, Rhône-Alpes
Central coordinates 6o 31.00' East  46o 22.00' North
IBA criteria A4i, A4iii, B1i, C3, C4
Area 24,300 ha
Altitude 372 m
Year of IBA assessment 2000

Ligue Pour La Protection des Oiseaux

Site description French part of Lake Geneva with reedbeds (Phragmites), marshes and aquatic vegetation (Swiss part of the lake contains IBAs 007, 008, 009).

Key Biodiversity The area is of international importance for wintering and passage waterbirds. The site holds 20,000 or more waterbirds in winter, on a regular basis. Species of global conservation concern that do not meet IBA criteria: Aythya nyroca (wintering). All bird data are for the French part of the lake only.

Populations of IBA trigger species

Species Season Period Population estimate Quality of estimate IBA Criteria IUCN Category
Tufted Duck Aythya fuligula winter  1997  4,671-19,823 individuals  A4i  Least Concern 
Greater Scaup Aythya marila winter  1997  3-13 individuals  A4i, B1i, C3  Least Concern 
Great Crested Grebe Podiceps cristatus winter  1997  1,584-9,351 individuals  B1i, C3  Least Concern 
Great Crested Grebe Podiceps cristatus passage  1997  20,000 individuals  A4i, B1i, C3  Least Concern 
A4iii Species group - waterbirds passage  1997  20,000-49,999 individuals  unknown  A4iii, C4   

Protected areas

Protected area Designation Area (ha) Relationship with IBA Overlap with IBA (ha)  
Baie de Sciez Hunting Reserve 1,920 protected area contained by site 1,920  
Delta de la Dranse National Nature Reserve 52 protected area contained by site 52  
Hermance Hunting Reserve 520 protected area contained by site 520  
Rives du Lac Léman Wetlands of International Importance (Ramsar) 3,335 protected area contained by site 3,335  


IUCN habitat Habitat detail Extent (% of site)
Wetlands (inland) Standing freshwater; Water fringe vegetation  -

Land use

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

Protection status National Low International Partial52 ha of IBA covered by Nature Reserve (Delta de la Dranse, 52 ha). 1,440 ha of IBA covered by 2 Hunting Reserves (Baie de Sciez; Hermance; total area 1,440 ha). 45 ha of IBA covered by Special Protection Area (Lac Léman: Delta de la Dranse, 45 ha). 3,335 ha of IBA covered by Ramsar Site (Rives du Lac Léman, 3,335 ha).

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Recommended citation  BirdLife International (2016) Important Bird and Biodiversity Area factsheet: Lac Léman (partie française). Downloaded from on 26/10/2016

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