IBA Criteria met: A4i, B1i, B3, C3 (2011)
For more information about IBA criteria please click here
Area: 429 ha
Two small islands in the Ría de Pontevedra estuary, covered by scrub and grasslands. The main human activity is tourism.
This is an important site for breeding seabirds.
BirdLife International (2023) Important Bird Areas factsheet: Ons islands. Downloaded from http://www.birdlife.org on 26/03/2023.