A bay with saltwater lagoons, saltwater marshes and mudflats.
The site holds 20,000 or more waterbirds in winter, on a regular basis. The site is also important for breeding waders.
BirdLife International (2019) Important Bird Areas factsheet: Anse du Fiers d'Ars en Ré. Downloaded from http://www.birdlife.org on 21/04/2019.