A reservoir with a planted scrub fringe and a Fagus wood in the south. Areas of open water remain ice-free throughout the winter.
This is an important area for passage and wintering waterbirds. Species of global conservation concern that do not meet IBA criteria: Aythya nyroca (passage).
BirdLife International (2020) Important Bird Areas factsheet: Reservoir near Affoldern. Downloaded from http://www.birdlife.org on 09/07/2020.