A shallow (<1 m), inland bay (lagoon) fringed by a low coastline of reedbeds, meadows and small islets in the southern part of Hiiumaa island, off the west coast of Estonia. Coastal meadows are used for cattle-grazing. There is a nature trail with three tower-hides.
The bay is an important staging site for migrating wildfowl and Grus grus. Nearly 90 bird species have been recorded breeding, including a wide variety of waterbirds.
Pressure/threats to key biodiversity
Major threats include water pollution from the surrounding area, human disturbance of birds, and overgrowth of coastal meadows with reed Phragmites due to undergrazing. There is a management plan for Käina Bay, which is a planned core area of the West Estonian Archipelago Biosphere Reserve. Research involves the monitoring of breeding and migrating waterbirds.
National High International High1,316 ha of IBA covered by Protected Landscape (Käina Bay-Kassari, 2,662 ha). 1,316 ha of IBA covered by Ramsar Site (Hiiumaa Islets and Käina Bay, 17,700 ha). 1,316 ha of IBA covered by Biosphere Reserve (West Estonian Archipelago, 1,560,000 ha).
BirdLife International (2021) Important Bird Areas factsheet: Käina bay. Downloaded from
http://www.birdlife.org on 04/08/2021.