email a friend
printable version
Location Spain, Castilla y León,Castilla-La Mancha,Comunidad de Madrid
Central coordinates 3o 20.00' West  41o 15.00' North
IBA criteria B2, C6
Area 187,000 ha
Altitude 1,000 - 2,262m
Year of IBA assessment 2000

SEO/BirdLife



Site description A massif at the eastern end of the Sistema Central mountains. The dominant vegetation is sclerophyllous scrub with small Quercus and Fagus woods and extensive Pinus plantations. Hunting and forestry are the most important human activities.

Key Biodiversity This is an important site for breeding raptors.

Populations of IBA trigger species

Species Season Period Population estimate Quality of estimate IBA Criteria IUCN Category
Falco peregrinus resident  1995  16-17 breeding pairs  good  B2, C6  Not Recognised 
Golden Eagle Aquila chrysaetos resident  1995  16-19 breeding pairs  good  B2, C6  Least Concern 
Bonelli's Eagle Aquila fasciata resident  1995  3 breeding pairs  good  C6  Least Concern 

IBA Monitoring

2008 very high unfavourable negligible
Habitat
Medium - based upon reliable but incomplete / partially representative data

Energy production and mining mining and quarrying happening now small area/few individuals (<10%) very rapid to severe deterioration low
Energy production and mining renewable energy happening now some of area/population (10-49%) moderate to rapid deterioration high
Over-exploitation, persecution and control of species direct mortality of trigger species - hunting and trapping happening now whole area/population (>90%) moderate to rapid deterioration very high
Transportation and service corridors roads and railroads likely in long term (beyond 4 years) some of area/population (10-49%) moderate to rapid deterioration medium
Transportation and service corridors utility & service lines likely in long term (beyond 4 years) some of area/population (10-49%) moderate to rapid deterioration medium

Forest Broadleaved deciduous woodland  0 0 moderate (70-90%) moderate (70-90%) unfavourable
Shrubland Scrub  0 0 good (> 90%) good (> 90%) favourable

Little/none of site covered (<10%)  No management planning has taken place  Very little or no conservation action taking place  negligible 

Protected areas

Protected area Designation Area (ha) Relationship with IBA Overlap with IBA (ha)  
Cuenca del r Habitats Directive 49,887 protected area overlaps with site 16,576  
Cuencas de los r Habitats Directive 36,088 protected area is adjacent to site 0  
Hayedo de Montejo de la Sierra Nature Area of National Interest 250 protected area contained by site 250  
Hayedo de Tejera Negra Nature Park 1,641 protected area contained by site 1,641  
RIBERAS DEL HENARES - ES4240003 Habitats Directive 1,250 protected area is adjacent to site 0  
Riofrío de Riaza Nature Area of National Interest 87 protected area contained by site 87  
SIERRA DE AYLLON - ES0000164 Birds Directive 91,357 protected area contained by site 91,357  
SIERRA DE AYLLÓN - ES4160019 Habitats Directive 14,119 protected area overlaps with site 7,349  
SIERRA DE PELA - ES4240007 Habitats Directive 11,972 protected area overlaps with site 1,054  
Sonsaz National Game Reserve 68,106 protected area contained by site 68,106  

Habitats

IUCN habitat Habitat detail Extent (% of site)
Forest Broadleaved deciduous woodland  10%
Shrubland Scrub  15%
Grassland Dry siliceous grassland; Humid grasslands  10%
Rocky areas Inland cliffs  10%
Artificial - terrestrial Arable land; Forestry plantations  50%

Land use

Land-use Extent (% of site)
agriculture -
forestry 60%
hunting 100%

Protection status National Partial International None1,641 ha of IBA covered by Natural Park (Hayedo de Tejera Negra, 1,641 ha). 68,106 ha of IBA covered by National Game Reserve (Sonsaz, 68,106 ha). 87 ha of IBA covered by Natural Site of National Interest (Riofrío de Riaza, 87 ha). 250 ha of IBA covered by Natural Site of National Interest (Hayedo de Montejo de la Sierra, 250 ha).

Contribute  Please click here to help BirdLife conserve the world's birds - your data for this IBA and others are vital for helping protect the environment.

Recommended citation  BirdLife International (2014) Important Bird Areas factsheet: Ayllón mountain range. Downloaded from http://www.birdlife.org on 24/11/2014

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