On the border between Romania and the Republic of Moldova is the accumulation lake Costesti-Stânca. It occupies an area of 59 sq. Km. Near the lake there are ponds, wooded areas, meadows, but also reed beds, hatcheries. Birds found here are such species as: egret, grey stork, red stork, stork, little grebe, summer or mute swan, many species of ducks. Most of them are sedentary birds, who have permanent living conditions in the reserve.