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Location Spain, Aragón,Cataluña
Central coordinates 0o 20.00' East  41o 0.00' North
IBA criteria B1i, B2, C2, C6
Area 73,500 ha
Altitude 100 - 500m
Year of IBA assessment 2000


Site description A mountainous area dominated by Pinus forests, Quercus woodland and sclerophyllous scrub. Three rivers with associated riverine vegetation cross the area. The main human activities are forestry and hunting.

Key Biodiversity This is an important site for breeding raptors.

Populations of IBA trigger species

Species Season Period Population estimate Quality of estimate IBA Criteria IUCN Category
Black Stork Ciconia nigra passage  1996  20-30 individuals  medium  B1i, C2  Least Concern 
Black Kite Milvus migrans breeding  1997  40-50 breeding pairs  medium  C6  Least Concern 
Short-toed Snake-eagle Circaetus gallicus breeding  1997  20-30 breeding pairs  medium  B2, C6  Least Concern 
Bonelli's Eagle Aquila fasciata resident  1997  5-10 breeding pairs  medium  B2, C6  Least Concern 
Eurasian Eagle-owl Bubo bubo resident  1997  25-30 breeding pairs  poor  B2, C6  Least Concern 

Protected areas

Protected area Designation Area (ha) Relationship with IBA Overlap with IBA (ha)  
Aiguabarreig Segre-Cinca - ES5130013 Birds Directive 761 protected area overlaps with site 48  
MATARRAÑA - AIGUABARREIX - ES0000298 Birds Directive 36,724 protected area contained by site 36,724  
Ribera de l'Algars - ES5140003 Birds Directive 2,128 protected area overlaps with site 1,156  
RÍO ALGARS - ES2420118 Habitats Directive 874 protected area overlaps with site 198  
RÍO MATARRANYA - ES2430097 Habitats Directive 1,991 protected area overlaps with site 1,503  
Secans del Segrià i Utxesa - ES5130038 Habitats Directive 3,793 protected area overlaps with site 298  
Tossals d'Almatret i Riba Roja - ES5140012 Birds Directive 7,474 protected area contained by site 7,474  


IUCN habitat Habitat detail Extent (% of site)
Forest Alluvial and very wet forest; Native coniferous woodland  26%
Shrubland Sclerophyllous scrub, garrigue and maquis  26%
Wetlands (inland) Rivers and streams  -
Coastline Inland cliffs  26%
Artificial - terrestrial Arable land; Forestry plantations; Perennial crops, orchards and groves  -

Land use

Land-use Extent (% of site)
agriculture 30%
forestry 70%
hunting 100%

Protection status National None International None

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Recommended citation  BirdLife International (2015) Important Bird Areas factsheet: Lower course of the river Matarraña-Ribarroja. Downloaded from on 03/05/2015

To provide new information to update this factsheet or to correct any errors, please email BirdLife