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Location Portugal, Alentejo,Algarve
Central coordinates 8o 2.00' West  37o 19.00' North
IBA criteria B2, C6
Area 70,445 ha
Altitude 123 - 577m
Year of IBA assessment 2002

Sociedade Portuguesa para o Estudo das Aves

Site description Extensive greywache-schist mountainous massif with soft and round forms where are born several watercourses of Algarve's Lee and Weather side, and of Alentejo. This site is covered by extensive cork-oak groves. At shadowy parts, complex and developed arborescent thickets, with arbutus groves and heaths, are present; and at sunny sides, we find diverses simplify shrubs, prevailing cistus. Areas with soft relief hold human occupation, reduced since 60's, with associate subsistence agricultural patches, mainly at occidental and oriental extremes. The site is acrossed by River Odeolouca, its valley bounds Algarve and Alentejo regions, and presents linear human occupation concentrated in dispersed nucleus.

Key Biodiversity The extensive well-preserved cork-oak groves are essential for breeding stability of Hieraaetus fasciatus. These habitats with low human intervention are also propitious for Circaetus gallicus that presents here a representative nucleus, completing those of Monchique mountains and Espinhaço do Cão (Weather side mountains). It is also to relate the presence of Bubo bubo that nests in hillsides with dense thickets or in rocky outcrops.

Populations of IBA trigger species

Species Season Period Population estimate Quality of estimate IBA Criteria IUCN Category
White Stork Ciconia ciconia resident  2001  frequent  C6  Least Concern 
Bonelli's Eagle Aquila fasciata resident  2001  6-8 breeding pairs  good  B2, C6  Least Concern 
Short-toed Snake-eagle Circaetus gallicus breeding  2001  frequent  C6  Least Concern 
Eurasian Eagle-owl Bubo bubo resident  2001  27-30 breeding pairs  good  C6  Least Concern 
European Roller Coracias garrulus breeding  2001  rare  C6  Least Concern 
Wood Lark Lullula arborea resident  2001  common  C6  Least Concern 
Thekla Lark Galerida theklae resident  2001  common  C6  Least Concern 

IBA Monitoring

2005 low not assessed not assessed
Good - based on reliable and complete / representative data

Transportation and service corridors utility & service lines happening now small area/few individuals (<10%) very rapid to severe deterioration low

Protected areas

Protected area Designation Area (ha) Relationship with IBA Overlap with IBA (ha)  
Rocha da Pena Classified Site 672 protected area contained by site 733  


IUCN habitat Habitat detail Extent (% of site)
Forest Broadleaved evergreen woodland; Mixed woodland  -
Shrubland Sclerophyllous scrub, garrigue and maquis; Scrub  -
Wetlands (inland) Rivers and streams  -
Artificial - terrestrial Arable land  -

Land use

Land-use Extent (% of site)
agriculture -
forestry -
hunting -
tourism/recreation -
nature conservation and research -
other -

Protection status National SCI proposal Caldeirão (PTCON0057; 47286 ha contained by IBA); SCI proposal Barrocal (PTCON0049; 20864 ha contained by IBA)International SCI proposal Caldeirão; SCI proposal Barrocal

References Rufino (1989), Palma (1993, 1994, 1995), Pais (1996), Real et al. (1997), Silva (1999), Inácio et al. (1999), Palma et al.(1999a,b,2001), Pais et al (2000), Praxis (2001), Lourenço et al (2002)

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Recommended citation  BirdLife International (2016) Important Bird and Biodiversity Area factsheet: Serra do Caldeirão. Downloaded from on 26/10/2016

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