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Location Spain, Castilla y León,La Rioja
Central coordinates 2o 45.00' West  42o 5.00' North
IBA criteria B2, B3, C6
Area 142,000 ha
Altitude 900 - 2,228m
Year of IBA assessment 2000


Site description The site encompasses the central mountains of the Sistema Ibérico Norte with large Pinus, Quercus and Fagus woodlands, and extensive areas of grassland and scrub. The main human activities are forestry, livestock-farming, and recreational activities.

Key Biodiversity This is an important area for species associated with upland forest and grassland, particularly raptors.

Populations of IBA trigger species

Species Season Period Population estimate Quality of estimate IBA Criteria IUCN Category
Grey Partridge Perdix perdix resident  1996  100 breeding pairs  C6  Least Concern 
European Honey-buzzard Pernis apivorus resident  1996  17 breeding pairs  medium  B3, C6  Least Concern 
Circus cyaneus resident  1996  16 breeding pairs  medium  B2, C6  Not Recognised 
Golden Eagle Aquila chrysaetos resident  1996  5 breeding pairs  good  C6  Least Concern 
Booted Eagle Hieraaetus pennatus breeding  1996  20 breeding pairs  medium  B2, C6  Least Concern 
Circaetus gallicus breeding  1996  15 breeding pairs  medium  C6  Not Recognised 

Protected areas

Protected area Designation Area (ha) Relationship with IBA Overlap with IBA (ha)  
Cameros National Game Reserve 92,918 protected area overlaps with site 82,000  
Urbión National Game Reserve 100,023 protected area overlaps with site 80,000  


IUCN habitat Habitat detail Extent (% of site)
Forest Broadleaved deciduous woodland; Broadleaved evergreen woodland; Mixed woodland; Native coniferous woodland  30%
Shrubland Heathland; Scrub  30%
Grassland Steppes and dry calcareous grassland  20%
Artificial - terrestrial Forestry plantations  20%

Land use

Land-use Extent (% of site)
forestry 50%
hunting 100%
agriculture 40%

Protection status National High International Partial82,000 ha of IBA covered by National Game Reserve (Cameros, 92,918 ha). 80,000 ha of IBA covered by National Game Reserve (Urbion, 100,023 ha). 81,250 ha of IBA covered by Special Protection Area (Sierras de Urbión, Cebollera y Cameros, 81,250 ha).

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Recommended citation  BirdLife International (2016) Important Bird and Biodiversity Area factsheet: Urbión and Cebollera Mountain Ranges. Downloaded from on 22/10/2016

To provide new information to update this factsheet or to correct any errors, please email BirdLife