Two freshwater lakes, 15 km east of the village of Montepulciano. The lakes are surrounded by extensive reedbeds, cultivated land and small broadleaved woodlands, and there are also some small artificial ponds called Vasche di Dolciano. Lake water-levels fluctuate greatly during the year.
An important area for breeding Ixobrychus minutus, wintering Phalacrocorax carbo, and for a mixed heronry at Lago di Chiusi. Herons and cormorants roost at Vasche di Dolciano. Species of global conservation concern that do not meet IBA criteria: Aythya nyroca (1-2 pairs breed, max. 4 in winter).
BirdLife International (2020) Important Bird Areas factsheet: Lakes Montepulciano and Chiusi. Downloaded from http://www.birdlife.org on 28/02/2020.