Site of Biological and Ecological Interest, Permanent Hunting Reserve. The site is composed of six units in two artificial habitats: the reservoir of Al Mansour Ad-Dahbi embankment, located only downstream of the confluence of two rivers, and six oases with irrigated palm plantations along the course of the Dr'a River. More than 20 species of birds winter or nest in the dam area. The site is an important refuge for migratory species, especially sparrows on the Trans-Saharan route that uses this site to pose before and after crossing the desert. Common mammals in the region that are rare in Morocco include the Fennec Fox, the North African striped weasel, African wild cat, the Common Genet and the Common Otter. Reptilian species are found in the region.