Data Zone
Country/territory: Germany
IBA criteria met: A4i, A4iii, B1i, B2, C2, C3, C4, C6 (2002)
For more information about IBA criteria, please click here
Area: 6,053 hectares (60.53 km2)
Site description (2000 baseline)
The Untersee is a large shallow lake situated on the course of the River Rhine, adjacent to Swiss IBA 014. Habitat-types include riverine forest, Alnus swamp-forest, dry grassland, wet meadows, lightly improved grassland, shallow water zones, reed- Phragmites and sedge-beds, mudflats and gravel-banks.
Key biodiversity
This is an important stop-over site for passage wildfowl. Species of global conservation concern that do not meet IBA criteria: Aythya nyroca (breeding).
Recommended citation
BirdLife International (2024) Important Bird Area factsheet: Untersee of Lake Constance (Germany). Downloaded from
https://datazone.birdlife.org/site/factsheet/untersee-of-lake-constance-iba-germany on 27/12/2024.