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The site was identified as internationally important for bird conservation in 2002 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
Eurasian Spoonbill Platalea leucorodia	LC	breeding (1998)	50–60 pairs	B1i, B2, C6
Black-winged Kite Elanus caeruleus	LC	resident (1997)	3–4 pairs	B2
Short-toed Snake-eagle Circaetus gallicus	LC	breeding (1997)	2–3 pairs	C6
Booted Eagle Hieraaetus pennatus	LC	breeding (1997)	23–25 pairs	B1ii, B2
Red Kite Milvus milvus	LC	breeding (2000)	1–2 pairs	C6
Black Kite Milvus migrans	LC	breeding (1997)	13–15 pairs	C6

Ideally the conservation status of the IBA will have been checked regularly since the site was first identified in 2002. The most recent assessment (2005) is shown below.

Pressure (threats to the trigger species and/or their habitats)
Threat	Timing	Scope	Severity	Result
Transportation and service corridors	happe­ning now	few indivi­duals/small area (<10%)	rapid decline (>30% over 3 gener­ations)	low

Response (conservation actions taken for the trigger species and/or their habitats)
Designation	Planning	Action	Result
Not assessed	Not assessed	Not assessed	not assessed

Habitat	% of IBA	Habitat detail
Artificial/Terrestrial	-	Arable land; Perennial crops, orchards and groves; Forestry plantations
Forest	-	Broadleaved evergreen woodland
Introduced vegetation	-
Wetlands (inland)	-	Standing freshwater; Rivers and streams; Water fringe vegetation

Land use	% of IBA
agriculture	-
forestry	-
hunting	-

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Recommended citation
BirdLife International (2024) Important Bird Area factsheet: Arraiolos (Portugal). Downloaded from https://datazone.birdlife.org/site/factsheet/arraiolos-iba-portugal on 22/12/2024.