Data Zone
Country/territory: Spain
IBA criteria met: A1, A4ii, B1iii, B2, C1, C2, C6 (2011)
For more information about IBA criteria, please click here
Area: 20,785 hectares (207.85 km2)
Site description (2000 baseline)
An area of limestone cliffs and several large gorges. The vegetation includes alpine grassland, scrub, and Quercus, Fagus and Pinus forests. The main human activities are forestry, hunting and livestock-grazing.
Key biodiversity
This is an important site for cliff-nesting birds and a wintering site for Perdix perdix. The site holds the largest Gyps fulvus colonies in Spain.
Recommended citation
BirdLife International (2024) Important Bird Area factsheet: Leyre, Illón and San Miguel mountain ranges (Spain). Downloaded from
https://datazone.birdlife.org/site/factsheet/leyre-illón-and-san-miguel-mountain-ranges-iba-spain on 24/12/2024.