A river valley (50-100 m wide) with flood-meadows, scrub, swamps, streams and ponds. The whole valley is used for haymaking and grazing.
This is a particularly good site in Lithuania for Crex crex.
BirdLife International (2020) Important Bird Areas factsheet: Valley of Sirvinta River. Downloaded from http://www.birdlife.org on 10/08/2020.