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Location Spain, Castilla y León,La Rioja
Central coordinates 3o 15.00' West  42o 40.00' North
IBA criteria B2, C2, C6
Area 35,000 ha
Altitude 600 - 1,434m
Year of IBA assessment 2000


Site description A low mountain range to the west of Miranda del Ebro, which includes many cliffs and a small gorge. The main vegetation-types are scrub, grassland and Quercus and Fagus woodland. The area is used for livestock-farming, arable agriculture and hunting.

Key Biodiversity This is an important site for cliff-nesting raptors.

Populations of IBA trigger species

Species Season Period Population estimate Quality of estimate IBA Criteria IUCN Category
Falco peregrinus resident  1995  9 breeding pairs  medium  C6  Not Recognised 
Egyptian Vulture Neophron percnopterus breeding  1995  15 breeding pairs  medium  B2, C6  Endangered 
Golden Eagle Aquila chrysaetos resident  1995  9-10 breeding pairs  medium  C6  Least Concern 
Bonelli's Eagle Aquila fasciata resident  1995  3-4 breeding pairs  medium  C6  Least Concern 
Eurasian Eagle-owl Bubo bubo resident  1995  15 breeding pairs  medium  C6  Least Concern 
Red-billed Chough Pyrrhocorax pyrrhocorax resident  1995  150-200 breeding pairs  medium  B2, C2, C6  Least Concern 


IUCN habitat Habitat detail Extent (% of site)
Forest Alluvial and very wet forest; Broadleaved deciduous woodland; Broadleaved evergreen woodland  30%
Shrubland Sclerophyllous scrub, garrigue and maquis; Scrub  35%
Rocky areas Inland cliffs  10%
Artificial - terrestrial Arable land; Perennial crops, orchards and groves  35%

Land use

Land-use Extent (% of site)
agriculture 35%
forestry 7%
hunting 65%
other 30%
not utilised 14%

Protection status National None International Partial4,000 ha of IBA covered by Special Protection Area (Obarenes-Sierra de Cantabria, 5,350 ha).

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Recommended citation  BirdLife International (2016) Important Bird and Biodiversity Area factsheet: Obarenes mountains. Downloaded from on 28/10/2016

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