|Most recent IBA monitoring assessment|
|Year of assessment||Threat score (pressure)||Condition score (state)||Action score (response)|
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Three adjacent, shallow and nutrient-rich lakes with lush vegetation on the upper course of the Lapijoki river. Some parts of the shoreline are bordered by wide marshes. The water-levels of Koskeljärvi and Pitkäjärvi lakes are regulated, which has increased the lake's value for birds on the former, but on the latter has caused over-eutrophication. Koskeljärvi, the most important ornithologically, is the largest lake in south-western Finland without any settlements on its shores.
An important breeding area for wetland birds, including nationally important numbers of Circus aeruginosus (6 pairs). Species of global conservation concern that do not meet IBA criteria: Haliaeetus albicilla (max. 6 individuals, passage).
BirdLife International (2021) Important Bird Areas factsheet: Koskeljärvi, Vaaljärvi and Pitkäjärvi lakes. Downloaded from http://www.birdlife.org on 12/04/2021.