Sites - Important Bird and Biodiversity Areas (IBAs)
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Upper River Tejo
7o 15.00' West 39o 43.00' North
A4i, B1i, B2, C6
150 - 319m
Year of IBA assessment
Sociedade Portuguesa para o Estudo das Aves
Site description Steep valleys with cliffs and Mediterranean scrub, located at the eastern border of central Portugal. The riverbed is much wider than it was 25 years ago, due to the construction of a large dam, and now allows the small-boat traffic of professional fishermen and recreational purposes.This site includes a great diversity of habitats that hold a wide mediterranean animal and vegetal diversity.
Key Biodiversity This area has a great value due to its wide diversity of species, withh special importance of cliff-nesting species and some steppic birds in plain areas. This site holds the greates population in Portugal of ciconia nigra and a significative proportion of large raptors. Also it is the only place in Portugal with breeding Aegypius monachus and still it is possible to found a Pterocles alchata.
Arable land; Forestry plantations; Perennial crops, orchards and groves
Extent (% of site)
nature conservation and research
Protection statusNational Natural park 23441ha, 16627 ha overlaps with IBA Special Protection Area Tejo Internacional, Erges e Ponsul,25764 ha overlaps with IBAInternational: Special Protection Area Tejo Internacional, Erges e Ponsul
References Pacheco & Monteiro (1999)Pacheco et al. (1999)Rosa et al.(1999)Rosa et al. (2001a,b)
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BirdLife International (2014) Important Bird Areas factsheet: Upper River Tejo. Downloaded from
http://www.birdlife.org on 24/11/2014
To provide new information to update this factsheet or to correct any errors, please email BirdLife