Urdaibai - Matxitxako

Country/territory: Spain

IBA criteria met: A1, A4i, B1i, B3, C1, C2, C6 (2011)
For more information about IBA criteria, please click here

Area: 24,528 ha

IBA conservation status
Year of assessment (most recent) Threat (pressure) Condition (state) Action (response)
2008 very high very unfavourable medium
For more information about IBA monitoring, please click here

Site description (baseline)
A deep estuary with some remnant brackish marshes, extensive mudflats and sandbanks. There is a small rocky islet at the mouth of the estuary and a large coastal cliff in the west of the area.

Key biodiversity
This is an important site for passage and wintering waders and Platalea leucorodia and resident seabirds.

Recommended citation
BirdLife International (2023) Important Bird Area factsheet: Urdaibai - Matxitxako. Downloaded from on 06/06/2023.