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.
This is an important site for breeding raptors.
Pressure/threats to key biodiversity
The main threats are from forestry activities, particularly the construction of new tracks and roads, increasing tourism and dams on rivers.
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).
BirdLife International (2020) Important Bird Areas factsheet: Ayllón mountain range. Downloaded from
http://www.birdlife.org on 28/05/2020.