A shallow, nutrient-rich lake with large areas of reedbed (Phragmites), surrounded by meadows and cultivated land.
The site holds more than 20,000 passage waterbirds on a regular basis. Species of global conservation concern that do not meet IBA criteria: Crex crex (breeding).
BirdLife International (2020) Important Bird Areas factsheet: Rietzer See. Downloaded from http://www.birdlife.org on 01/06/2020.