Saltwater and freshwater lagoons with reedbeds (Phragmites), sand-dunes, beaches, rocky coast, wet meadows, agricultural and uncultivated land.
The site is important for passage and wintering waterbirds. Species of global conservation concern that do not meet IBA criteria: Aythya nyroca (passage).
BirdLife International (2020) Important Bird Areas factsheet: Marais de la Baie d'Audierne. Downloaded from http://www.birdlife.org on 10/07/2020.