Data Zone
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 hectares (245.28 km2)
| IBA conservation status | |||
|---|---|---|---|
| Year of assessment (most recent) | State (condition) | Pressure (threat) | Response (action) |
| 2008 | very poor | very high | medium |
| For more information about IBA monitoring, please click here | |||
Site description (2000 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 (2024) Important Bird Area factsheet: Urdaibai - Matxitxako (Spain). Downloaded from
https://datazone.birdlife.org/site/factsheet/urdaibai--matxitxako-iba-spain on 24/12/2024.