Starting from 1888 the track of the Ticino river has been modified where it flows into the lake.
After the war the terrains have been reclaimed and in 1965 the dam for the Verzasca River was completed.
In 1982 it has been enlisted in the UNESCO's Ramsar Convention for the protection of the moist areas.
It is part of the European project European-African Songbird Migration Network of the Oldenburg University.
Thanks to these studies has been discovered the importance of the Bolle di Magadino for migratory birds.