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Location Spain, Castilla y León
Central coordinates 6o 20.00' West  42o 50.00' North
IBA criteria B2, B3, C6
Area 59,000 ha
Altitude 700 - 2,111m
Year of IBA assessment 2000


Site description A mountainous area in the southern part of the Cordillera Cantábrica, with slopes covered by scrub, grassland, and deciduous woodland. Human activities include cattle-grazing, game hunting and forestry.

Populations of IBA trigger species

Species Season Period Population estimate Quality of estimate IBA Criteria IUCN Category
Western Capercaillie Tetrao urogallus resident  1992  25-30 breeding pairs  good  C6  Least Concern 
Grey Partridge Perdix perdix resident  1996  120-150 breeding pairs  good  C6  Least Concern 
Short-toed Snake-eagle Circaetus gallicus breeding  1996  15-20 breeding pairs  medium  B2  Least Concern 
European Honey-buzzard Pernis apivorus breeding  1996  10-20 breeding pairs  medium  B3, C6  Least Concern 
Circus cyaneus resident  1996  10-15 breeding pairs  good  C6  Not Recognised 
Rufous-tailed Rock-thrush Monticola saxatilis breeding  1996  50-60 breeding pairs  medium  B2  Least Concern 

Protected areas

Protected area Designation Area (ha) Relationship with IBA Overlap with IBA (ha)  
ALTO SIL - ES0000210 Birds Directive 43,752 protected area overlaps with site 16,349  
OMAÑAS - ES0000364 Birds Directive 24,135 protected area overlaps with site 18,133  
OMAÑAS - ES4130149 Habitats Directive 20,042 protected area overlaps with site 17,853  
SIERRA DE LOS ANCARES - ES4130010 Birds Directive 55,582 protected area is adjacent to site 0  


IUCN habitat Habitat detail Extent (% of site)
Forest Alluvial and very wet forest; Broadleaved deciduous woodland; Broadleaved evergreen woodland; Mixed woodland; Treeline ecotone  26%
Shrubland Heathland; Sclerophyllous scrub, garrigue and maquis; Scrub  26%
Grassland Alpine, subalpine and boreal grassland; Dry siliceous grassland; Humid grasslands  -
Wetlands (inland) Raised bogs; Rivers and streams  -
Rocky areas Inland cliffs; Scree & boulders  -
Artificial - terrestrial Arable land; Forestry plantations  -

Land use

Land-use Extent (% of site)
agriculture -
forestry 26%
hunting -
urban/industrial/transport -

Protection status National None International None

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Recommended citation  BirdLife International (2014) Important Bird Areas factsheet: Gistreo and Coto mountain ranges. Downloaded from on 24/10/2014

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