|Most recent IBA monitoring assessment|
|Year of assessment||Threat score (pressure)||Condition score (state)||Action score (response)|
|For more information about IBA monitoring please click here|
Two adjacent large lakes lying south-east of Eura. Köyliönjärvi lake is 10 km long, eutrophic and surrounded by farmland and settlements. Several large ridge-like islands with mixed habitats stand in the middle of the lake. Cattle graze some parts of the shoreline keeping meadow vegetation low and deciduous forests open. The IBA also includes some of the most ornithologically important bays of Pyhäjärvi lake, which is otherwise nutrient-poor, (oligotrophic) and unimportant for birds.
One of the most important staging areas for Mergus merganser (in autumn) in Finland. Species of global conservation concern that do not meet IBA criteria: Haliaeetus albicilla (5 individuals, passage), Crex crex (1 pair, breeding).
BirdLife International (2021) Important Bird Areas factsheet: Köyliönjärvi and Pyhäjärvi lakes. Downloaded from http://www.birdlife.org on 19/04/2021.