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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 IBA criteria.

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

Species	Red List	Season (year/s of estimate)	Size	IBA criteria
Grey Partridge Perdix perdix	LC	resident (2009)	15–20 breeding pairs	C6
Rock Ptarmigan Lagopus muta	LC	resident (2010)	50–80 breeding pairs	C6
Western Capercaillie Tetrao urogallus	LC	resident (2010)	13–15 males	C6
Eurasian Dotterel Eudromias morinellus	LC	breeding (2009)	max 1 breeding pairs	C6
Red-billed Chough Pyrrhocorax pyrrhocorax	LC	resident (2009)	50–100 breeding pairs	B2, C2

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.

Pressure (threats to the key species and/or their habitats)
Threat	Timing	Scope	Severity	Result
Residential and commercial development	happen­ing now	most of popul­ation/area (50–90%)	moderate deteri­oration (10–30% in 3 gener­ations)	high
Human intrusions and disturbance	happen­ing now	some of popul­ation/area (10–49%)	moderate deteri­oration (10–30% in 3 gener­ations)	high
Biological resource use	happen­ing now	some of popul­ation/area (10–49%)	slow deteri­oration (1–10% over 3 gener­ations)	medium

Response (conservation actions taken for the key species and/or their habitats)
Designation	Planning	Action	Result
Most of site (50–90%) covered (including the most critical parts for important bird species)	Not assessed	Not assessed	low

Year	Protected Area	Designation (management category)	% coverage of IBA
1966	Cerdana	National Game Reserve (IV)	87
1987	La Llosa	Reserva Natural Parcial (IV)	<1
1992	Tossa Plana de Lles-Puigpedrós	Plan Especial de Protección (PEIN) (V)	59
1992	Beneïdor	Plan Especial de Protección (PEIN) (V)	2
2014	Riu de la Llosa	Plan Especial de Protección (PEIN) (V)	<1
2014	Riu Verneda	Plan Especial de Protección (PEIN) (V)	<1
2014	Riu Duran	Plan Especial de Protección (PEIN) (V)	<1

Habitat	% of IBA	Habitat detail
Forest	26
Grassland	26
Rocky areas (eg. inland cliffs, mountain peaks)	26
Shrubland	-

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

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Recommended citation
BirdLife International (2025) Important Bird Area factsheet: Cerdaña (Spain). Downloaded from https://datazone.birdlife.org/site/factsheet/cerdaña-iba-spain on 13/01/2025.