Observatories have been built on certain sites, in particular the lake in Marcillé-Robert, the peat bog in Parigné and the Careil Estate in Iffendic.
During the migratory period, in winter, the lakes and ponds are home to numerous species of bird. In fact, some of them remain throughout the winter, enjoying the tranquil surroundings and abundance of food.
The Conseil général has
published a number of guides to the natural environment, flora and fauna in Ille-et-Vilaine.
Our publicationsA number of associations have joined forces with the Conseil général to teach people more about the environment and the ecology: , the , and .