Large area on the boundaries of Yaroslavl and Kostroma regions covered by artificial reservoir. Meadows and forest surrounding reserviour are flooded in the spring period.
In total as minimum 24500 water birds of about 35 species are passing through area in spring.
BirdLife International (2019) Important Bird Areas factsheet: Flood-plain of Kostroma river. Downloaded from http://www.birdlife.org on 18/10/2019.