A freshwater lake of glacial origin on the western Padana plain, 15 km south of the town of Biella. The site includes large reedbeds and a wet woodland (Alnus). Tourism is the main human activity.
An important site for migrating and wintering waterbirds (up to 15,000 in winter) and for breeding reedbed passerines. Species of global conservation concern that do not meet IBA criteria: Aythya nyroca (max. 5 on passage).
Pressure/threats to key biodiversity
The main threats are agricultural intensification in the surrounding land, disturbance of birds by motor boats, and the regular (and apparently deliberate) burning of reedbeds.
National Low International None49 ha of IBA covered by Wildlife Reserve (Lago di Viverone, 49 ha).
BirdLife International (2022) Important Bird Areas factsheet: Lake Viverone. Downloaded from
http://www.birdlife.org on 08/08/2022.