The site was identified as internationally important for bird conservation in 2000 because it was regularly supporting significant populations of the species listed below, meeting IBA criteria.
Populations meeting IBA criteria ('key species') at the site:
| Species |
Red List |
Season (year/s of estimate) |
Size |
IBA criteria |
| Brent Goose Branta bernicla |
LC |
winter (1997) |
1,420–3,610 individuals |
A4i, B1i, C3 |
| Greater Scaup Aythya marila |
LC |
winter (1997) |
1,950–5,440 individuals |
B2 |
| Northern Pintail Anas acuta |
LC |
winter (1997) |
108–691 individuals |
B1i, C3 |
| Pied Avocet Recurvirostra avosetta |
LC |
winter (1997) |
1,294–2,103 individuals |
A4i, B1i, B2, C2 |
| Eurasian Curlew Numenius arquata |
NT |
winter (1997) |
215–1,596 individuals |
B2 |
| A4iii Species group - waterbirds |
n/a |
winter (1997) |
min 20,000 individuals |
A4iii, C4 |
| Habitat |
% of IBA |
Habitat detail |
| Marine Intertidal |
major (>10) |
|
| Marine Neritic |
major (>10) |
|
| Marine Coastal/Supratidal |
minor (<10) |
|
| Land use |
% of IBA |
| fisheries/aquaculture |
- |
| hunting |
- |
| tourism/recreation |
- |
Recommended citation
BirdLife International (2025) Important Bird Area factsheet: Baie de Vilaine (France). Downloaded from
https://datazone.birdlife.org/site/factsheet/baie-de-vilaine-iba-france on 15/01/2025.
