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The site was identified as important in 2011 because it was regularly supporting significant populations of the species listed below, meeting ('triggering') IBA criteria.

Populations meeting IBA criteria ('trigger species') at the site:

Species	Red List1	Season	Year(s)	Size	IBA criteria
Cinereous Vulture Aegypius monachus	NT	resident	2006	87-100 breeding pairs	A1, A4ii, B1iii, B2, C1, C2, C6
Spanish Imperial Eagle Aquila adalberti	VU	resident	2009	min 6 breeding pairs	A1, B2, C1, C2, C6
Red Kite Milvus milvus	LC	resident	2010	20-30 breeding pairs	A1, B2, C1, C6

1. The current IUCN Red List category. The category at the time of the IBA criteria assessment (2011) may differ.

Ideally the conservation status of the IBA will have been checked regularly since the site was first identified in 2011. The most recent assessment (2007) is shown below.

State (condition of the trigger species' populations)
Species	Reference	Actual	Units	% remaining	Result
Golden Eagle Aquila chrysaetos	2	2	breeding pairs	100	favourable

State (condition of the trigger species' habitats)
Habitat	Quantity (% remaining)	Quality (% carrying capacity)	Result
Wetlands (inland)	good (> 90%)	good (> 90%)	favourable

Pressure (threats to the trigger species and/or their habitats)
Threat	Timing	Scope	Severity	Result
Residential and commercial development	happening now	majority/most of area/population (50-90%)	very rapid to severe deterioration	very high
Transportation and service corridors	happening now	majority/most of area/population (50-90%)	moderate to rapid deterioration	high
Human intrusions and disturbance	happening now	whole area/population (>90%)	slow but significant deterioration	high
Natural system modifications	happening now	majority/most of area/population (50-90%)	slow but significant deterioration	high
Climate change and severe weather	happening now	whole area/population (>90%)	slow but significant deterioration	high
Agricultural expansion and intensification	happening now	some of area/population (10-49%)	slow but significant deterioration	medium
Energy production and mining	happening now	some of area/population (10-49%)	slow but significant deterioration	medium
Biological resource use	happening now	some of area/population (10-49%)	slow but significant deterioration	medium
Invasive and other problematic species and genes	happening now	some of area/population (10-49%)	slow but significant deterioration	medium
Pollution	happening now	some of area/population (10-49%)	slow but significant deterioration	medium

Response (conservation actions taken for the trigger species and/or their habitats)
Protected areas	Management plan	Other action	Result
Some of site covered (10-49%)	A comprehensive and appropriate management plan exists that aims to maintain or improve the populations of qualifying bird species	Substantive conservation measures are being implemented but these are not comprehensive and are limited by resources and capacity	medium

Year	Protected Area	Designation	% overlap with IBA
1930	Peña del Arcipreste de Hita	Monumento Natural de Interés Nacional	<1
1930	Pinar de la Acebeda	Nature Area of National Interest	1
1987	Sierra de Guadarrama - ZEPA	Special Protection Area (Birds Directive)	55
2000	Sierra De Guadarrama	Site of Community Importance (Habitats Directive)	55
2000	Valles del Voltoya y el Zorita - ZEPA	Special Protection Area (Birds Directive)	19
2000	Valles Del Voltoya y El Zorita	Site of Community Importance (Habitats Directive)	17
2007	Humedales del Macizo de Peñalara	Ramsar Site, Wetland of International Importance	<1
2010	Sierra Norte de Guadarrama	Parque Natural	51
2013	Sierra de Guadarrama	Parque Nacional	17

Habitat1	Habitat detail	% of IBA
Forest	Broadleaved deciduous woodland, Native coniferous woodland, Broadleaved evergreen woodland	26
Grassland	Dry siliceous grassland, Humid grasslands	26
Shrubland	Scrub	26
Artificial/Terrestrial	Arable land	-
Wetlands (inland)	Rivers and streams	-

1. IUCN Habitat classification.

Land use	% of IBA
forestry	26
hunting	-
agriculture	-
tourism/recreation	-

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Recommended citation
BirdLife International (2024) Important Bird Area factsheet: Northern slope of Guadarrama mountain range (Spain). Downloaded from https://datazone.birdlife.org/site/factsheet/northern-slope-of-guadarrama-mountain-range-iba-spain on 22/11/2024.