Data Zone
The site was identified as internationally important for bird conservation in 2011 because it was regularly supporting significant populations of the species listed below, meeting ('triggering') IBA criteria.
Populations meeting IBA criteria ('trigger species') at the site:| Species | Red List | Season (year/s of estimate) | Size | IBA criteria |
|---|---|---|---|---|
| Common Crane Grus grus | LC | winter (2010) | 990–1,500 birds | B1i, C2 |
| Spanish Imperial Eagle Aquila adalberti | VU | resident (2010) | min 3 pairs | A1, B2, C1, C2 |
| Red Kite Milvus milvus | LC | winter (2009) | min 30 birds | A1, C1 |
Recommended citation
BirdLife International (2024) Important Bird Area factsheet: El Oso - Corredor del Río Adaja (Spain). Downloaded from
https://datazone.birdlife.org/site/factsheet/el-oso--corredor-del-río-adaja-iba-spain on 25/12/2024.