Puurijärvi-Isosuo wetlands

Country/territory: Finland

IBA Criteria met: A1, B1i, C1, C2 (2000)
For more information about IBA criteria please click here

Area: 3,474 ha

Most recent IBA monitoring assessment
Year of assessment Threat score (pressure) Condition score (state) Action score (response)
2010 high favourable high
For more information about IBA monitoring please click here

Site description
A complex of habitats, comprising the large, shallow and eutrophic Puurijärvi lake, open fields (220 ha) and several adjacent mires along the Kokemäki river. The lake is mainly bordered by forests and in summer becomes almost totally overgrown with vegetation. Isosuo and other mires are large raised bogs with extensive open areas of pools in the centre, and sparse swamp-forests or mixtures of swamps and forests at the edges.

Key biodiversity
An important staging area for Haliaeetus albicilla and Cygnus cygnus. Podiceps grisegena (20 pairs), Porzana porzana (15 pairs) and Grus grus (10 pairs) also breed. Species of global conservation concern that do not meet IBA criteria: Crex crex (max. 4 pairs, breeding).

Recommended citation
BirdLife International (2021) Important Bird Areas factsheet: Puurijärvi-Isosuo wetlands. Downloaded from on 02/12/2021.