Tammisaari and Inkoo western archipelago

Country/territory: Finland

IBA criteria met: A1, A4i, B1i, B2, B3, C1, C2, C6 (2000)
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Area: 32,666 ha

IBA conservation status
Year of assessment (most recent) State (condition) Pressure (threat) Response (action)
2010 unfavourable medium medium
For more information about IBA monitoring, please click here

Site description (2000 baseline)
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 Area factsheet: Tammisaari and Inkoo western archipelago. Downloaded from on 23/09/2023.