• Summary
• Text account
• Data table and detailed info
• Map
• Reference and further resources

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
Little Bustard Tetrax tetrax	NT	resident	2005	min 425 individuals	A1, C1, C6
Little Bustard Tetrax tetrax	NT	winter	2007	min 1,050 individuals	A1, B2, C1, C6
Great Bustard Otis tarda	EN	resident	2004	min 72 individuals	A1, C1, C6
Black Stork Ciconia nigra	LC	passage	1992	min 17 individuals	B1i, B2, C2, C6
Black Stork Ciconia nigra	LC	breeding	2011	min 17 breeding pairs	B1i, B2, C2, C6
White Stork Ciconia ciconia	LC	breeding	2004	min 133 breeding pairs	C6
Egyptian Vulture Neophron percnopterus	EN	winter	2011	min 25 individuals	A1, C1, C2, C6
Egyptian Vulture Neophron percnopterus	EN	breeding	2008	min 9 breeding pairs	A1, C1, C2, C6
Spanish Imperial Eagle Aquila adalberti	VU	resident	2011	present	B2, C6
Spanish Imperial Eagle Aquila adalberti	VU	non-breeding	2011	present	B2, C6
Bonelli's Eagle Aquila fasciata	LC	resident	2011	min 4 breeding pairs	C2, C6
Booted Eagle Hieraaetus pennatus	LC	breeding	1996	min 50 breeding pairs	B2, C6
Red Kite Milvus milvus	LC	winter	2005	min 100 individuals	A1, C1
Black Kite Milvus migrans	LC	breeding	1996	min 100 breeding pairs	B2, C6
Lesser Kestrel Falco naumanni	LC	breeding	2002	75-90 breeding pairs	C2, 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 (2008) is shown below.

State (condition of the trigger species' populations)
Species	Reference	Actual	Units	% remaining	Result
White Stork Ciconia ciconia	400	400	breeding pairs	100	favourable
Egyptian Vulture Neophron percnopterus	3	3	breeding pairs	100	favourable
Spanish Imperial Eagle Aquila adalberti	3	3	breeding pairs	100	favourable
Bonelli's Eagle Aquila fasciata	1	1	breeding pairs	100	favourable
Booted Eagle Hieraaetus pennatus	1	1	breeding pairs	100	favourable
Milvus migrans	100	100	individuals	100	favourable

Pressure (threats to the trigger species and/or their habitats)
Threat	Timing	Scope	Severity	Result
Transportation and service corridors	happening now	some of area/population (10-49%)	moderate to rapid deterioration	high
Natural system modifications	happening now	some of area/population (10-49%)	slow but significant deterioration	medium
Biological resource use	happening now	majority/most of area/population (50-90%)	no or imperceptible deterioration	low

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%)	No management planning has taken place	Very little or no conservation action taking place	negligible

Year	Protected Area	Designation	% overlap with IBA
1997	Río Almonte	Site of Community Importance (Habitats Directive)	1
1997	Río Erjas	Site of Community Importance (Habitats Directive)	<1
2004	Embalse de Alcántara	Special Protection Area (Birds Directive)	8
2004	Embalse de Talaván	Special Protection Area (Birds Directive)	8
2004	Mina la Paloma	Site of Community Importance (Habitats Directive)	<1
2004	Colonias de Cernícalo Primilla de Garrovillas	Special Protection Area (Birds Directive)	<1
2004	Pinares de Garrovillas	Special Protection Area (Birds Directive)	1
2006	Parque Natural Tajo Internacional	Parque Natural	1
2006	Riberos del Almonte	Special Protection Area (Birds Directive)	1

Habitat1	Habitat detail	% of IBA
Forest	Broadleaved evergreen woodland	26
Shrubland	Scrub	26
Artificial/Terrestrial	Arable land, Forestry plantations	-
Grassland	Humid grasslands	-
Wetlands (inland)	Standing freshwater, Rivers and streams	-

1. IUCN Habitat classification.

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

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Recommended citation
BirdLife International (2024) Important Bird Area factsheet: Alcántara reservoir-Cuatro Lugares (Spain). Downloaded from https://datazone.birdlife.org/site/factsheet/alcántara-reservoir-cuatro-lugares-iba-spain on 22/11/2024.