Tammisaari and Inkoo western archipelago

Country/territory: Finland

IBA Criteria met: A1, A4i, B1i, B2, B3, C1, C2, C6 (2000)
For more information about IBA criteria please click here

Area: 32,666 ha

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

Site description
A large archipelago on the eastern side of the Hanko peninsula. Hundreds of islands dominate the landscape, several of which are very large and forested, though most are small and rocky with very sparse vegetation.

Key biodiversity
An important area for island-breeding birds with the largest populations of Sterna caspia and Larus marinus in Finland.

Recommended citation
BirdLife International (2023) Important Bird Areas factsheet: Tammisaari and Inkoo western archipelago. Downloaded from on 01/02/2023.