A large reservoir situated in the valley of the River Prut, on the border with Moldova. One side of the river has slopes dominated by arable crops and small patches of grassland. The old river valley contains riverine forest dominated by Salix, Fagus, Quercus and Ulmus. There is also a Populus plantation.
This is an important stop-over site for passage waterbirds due to its location on a migration route for birds moving to the Danube delta and the Black Sea. 124 species have been recorded in the IBA. Passage species of global conservation concern that do not meet IBA criteria: Aythya nyroca, Aquila heliaca and Crex crex.
BirdLife International (2020) Important Bird Areas factsheet: Stânca lake - Costeşti. Downloaded from http://www.birdlife.org on 22/09/2020.