Viewed from the sky, the large lakes (5,000 ha) of the Forêt d'Orient Regional Nature Park, offer long distance migratory birds large stretches of water for a dream stay. Autumn or spring migrators , wintering birds, myriads of colourful birds, whether they be divers, geese, or ducks and cranes... find here a haven of peace. The lakes and the mud flats which appear after they're drained, the meadows, the ponds, the cultivated fields, offer indispensable food resource for birds. This site of international renown (it represents one of the world sites recognized by the RAMSAR convention), is the object of very particular attention (hunting forbidden ,control of human activity ).
During the winter, it welcomes, besides the thousands of water birds, such important hosts as the rare white tailed fish eagles. Otherwise, these lakes and their surroundings borders (forests, ponds and marshes) shelter, in the breeding season, many species (grebes, ducks...). So far, around 270 species of birds have been observed by local ornithologists.