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

The site was identified as internationally important for bird conservation 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 List	Season (year/s of estimate)	Size	IBA criteria
Little Bustard Tetrax tetrax	NT	resident (2005)	min 425 birds	A1, C1, C6
Little Bustard Tetrax tetrax	NT	winter (2007)	min 1,050 birds	A1, B2, C1, C6
Great Bustard Otis tarda	EN	resident (2004)	min 72 birds	A1, C1, C6
Black Stork Ciconia nigra	LC	passage (1992)	min 17 birds	B1i, B2, C2, C6
Black Stork Ciconia nigra	LC	breeding (2011)	min 17 pairs	B1i, B2, C2, C6
White Stork Ciconia ciconia	LC	breeding (2004)	min 133 pairs	C6
Egyptian Vulture Neophron percnopterus	EN	winter (2011)	min 25 birds	A1, C1, C2, C6
Egyptian Vulture Neophron percnopterus	EN	breeding (2008)	min 9 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 pairs	C2, C6
Booted Eagle Hieraaetus pennatus	LC	breeding (1996)	min 50 pairs	B2, C6
Red Kite Milvus milvus	LC	winter (2005)	min 100 birds	A1, C1
Black Kite Milvus migrans	LC	breeding (1996)	min 100 pairs	B2, C6
Lesser Kestrel Falco naumanni	LC	breeding (2002)	75–90 pairs	C2, C6

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	Actual vs Reference (units)	% remaining	Result
White Stork Ciconia ciconia	400 / 400 (pairs)	100	good
Egyptian Vulture Neophron percnopterus	3 / 3 (pairs)	100	good
Spanish Imperial Eagle Aquila adalberti	3 / 3 (pairs)	100	good
Bonelli's Eagle Aquila fasciata	1 / 1 (pairs)	100	good
Booted Eagle Hieraaetus pennatus	1 / 1 (pairs)	100	good
Milvus migrans	100 / 100 (birds)	100	good

Pressure (threats to the trigger species and/or their habitats)
Threat	Timing	Scope	Severity	Result
Transportation and service corridors	happe­ning now	some of popul­ation/area (10–49%)	slow decline (1–10% over 3 gener­ations)	medium
Natural system modifications	happe­ning now	some of popul­ation/area (10–49%)	slow decline (1–10% over 3 gener­ations)	medium
Biological resource use	happe­ning now	most of popul­ation/area (50–90%)	no or slight decline (<1% over 3 gener­ations)	low

Response (conservation actions taken for the trigger species and/or their habitats)
Designation	Planning	Action	Result
Some of area covered (10–49%)	No management planning has taken place	Very little or no conservation action taking place	very low

Year	Protected Area	Designation (management category)	% coverage of IBA
2006	Parque Natural Tajo Internacional	Parque Natural (Ia)	1

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

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

---

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 22/12/2024.