El Oso - Corredor del Río Adaja

IBA Criteria

Year of most recent IBA criteria assessment: 2011

Populations of IBA trigger species
Species Current IUCN Red List Category Season Year(s) of estimate Population estimate IBA Criteria Triggered
Common Crane Grus grus LC winter 2010 990-1,500 individuals B1i, C2
Spanish Imperial Eagle Aquila adalberti VU resident 2010 min 3 breeding pairs A1, B2, C1, C2
Red Kite Milvus milvus NT winter 2009 min 30 individuals A1, C1

Note: This table presents the IBA criteria triggered and the species that triggered then at the time of assessment, the current IUCN Red List category may vary from that which was in place at that time.

For more information about the IBA assessment process and criteria please click here

IBA Protection

Protection status:

Protected Area Designation Area (ha) Relationship with IBA Overlap with IBA (ha)
Encinares de los ríos Adaja y Voltoya - ZEPA Special Protection Area (Birds Directive) 27,066 protected area is adjacent to site 0
Encinares De Los Ríos Adaja y Voltoya Site of Community Importance (Habitats Directive) 23,059 protected area overlaps with site 0

Recommended citation
BirdLife International (2020) Important Bird Areas factsheet: El Oso - Corredor del Río Adaja. Downloaded from on 26/10/2020.