A large complex of shallow (<5 m) bays on the western coast of Saaremaa island, with many small islets and some lakes. Vegetation includes reedbeds, coastal meadows, and forest. The main land-uses are nature-conservation projects and research, and grazing of cattle and sheep.
Vilsandi archipelago is an important breeding, staging and wintering area for waterbirds, especially wildfowl, and notably Polysticta stelleri in winter. Significant proportion (³1%) of national population breeding at site: Larus canus (400 pairs), Sterna caspia (3-4 pairs).
BirdLife International (2020) Important Bird Areas factsheet: Vilsandi archipelago. Downloaded from http://www.birdlife.org on 08/07/2020.