Hanko western archipelago

Country/territory: Finland

IBA criteria met: A4i, A4iii, B1i, C3, C4 (2015)
For more information about IBA criteria, please click here

Area: 11,151 ha

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

Site description (2000 baseline)
A diverse site situated in the south-west corner of the Hanko peninsula, comprising cliff-lined shores, sand-dunes, wet meadows and an archipelago of mostly small rocky islands. The IBA falls within Salpausselkä, a glacial ridge formation of southern Finland extending several hundred kilometres in length.

Key biodiversity
One of the most important staging areas for waterbirds in the country, with total numbers exceeding 20,000 individuals. Species of global conservation concern that do not meet IBA criteria: Polysticta stelleri (27 birds on passage, irregular and for short periods, 5 individuals in winter), Haliaeetus albicilla (4 individuals in winter, 5 on passage), Gallinago media (2 individuals, passage).

Recommended citation
BirdLife International (2023) Important Bird Area factsheet: Hanko western archipelago. Downloaded from on 04/12/2023.