Biodiversity: Boutigny-sur-Essonne chases away cars to preserve its little corner of nature. Since the end of February, only pedestrians and cyclists have been authorized to use Chemin des Marais.

A symbolic inauguration took place on March 2, 2024. In Europe, 800 million birds have disappeared in the last 40 years, according to the LPO (League for the Protection of Birds) Léon Van Niekerk of the environmental protection association, Le Geai.