Data Zone
Country/territory: France
IBA criteria met: A4i, A4iii, B1i, B2, C2, C3, C4, C6 (2000)
For more information about IBA criteria, please click here
Area: 32,990 hectares (329.90 km2)
Site description (2000 baseline)
A bay and estuary with islands and sand-dunes, Zostera beds, saltwater and freshwater lagoons, wet meadows, marshes and mudflats.
Key biodiversity
The site holds 20,000 or more waterbirds on passage and in winter, on a regular basis.
Recommended citation
BirdLife International (2024) Important Bird Area factsheet: Bassin d'Arcachon et Banc d'Arguin (France). Downloaded from
https://datazone.birdlife.org/site/factsheet/bassin-darcachon-et-banc-darguin-iba-france on 22/12/2024.