The dataset contains records of nests of cliff-nesting species of high conservation priority, namely birds of prey and Black Stork (Ciconia ciconia) (Aves) collected in the lower valley of River Sabor (NE Portugal), in the scope of the long-term Ecological Monitoring Program (PME) of the Baixo Sabor Hydroelectric Dams (AHBS), promoted by EDP – Energias de Portugal, S.A. This dataset includes results of nest surveys made in and around the area affected by the dam, from May 2010 to June 2014. Data consists of observations of all nests of the target species found in the study area, which were followed throughout the reproduction period (March-August) of each year. The records include the number of young produced by each couple in each year. The target species were Golden Eagle (Aquila chrysaetos), Bonelli's Eagle (Aquila fasciata), Griffon (Gyps fulvus), Egyptian Vulture (Neophron percnopteris), Peregrine Falcon (Falco peregrinus) and Black Stork (Ciconia nigra). Additional species whose nests or potential nesting sites were also recorded, included Black Kite (Milvus migrans), Common Kestrel (Falco tinnunculus) and Eagle Owl (Bubo bubo). Due to the vulnerability of nest site locations of these species, the precision of the geographic coordinates was degraded to 0.01, according to the recommendations of Chapman & Grafton (2008). The dataset with the original (undergraded) coordinates may be provided upon request by the resource contact from EDP, who will define the terms and conditions for its use.

The dataset contains records of cliff-nesting species of high conservation priority, namely birds of prey (Aves, Accipitriformes and Falconiformes) and Black Stork (Ciconia ciconia) (Aves, Ciconiiformes) collected in the lower River Sabor (NE Portugal), in the scope of the long-term Ecological Monitoring Program (PME) of the Baixo Sabor Hydroelectric Dams (AHBS), promoted by EDP – Energias de Portugal, S.A. The dataset includes results of surveys made in and around the area affected by the dam, from February 2010 to September 2014. Data consists of observations of the target species performed in fixed sampling points directed to birds of prey. Observations were made around the Sabor river, from its mouth to 42 km upstream. The presence and identity of bird species were assessed by visual and/or acoustic observation with binoculars and/or telescope. The records include taxa identified at the species level.

The dataset contains records of Common Kingfisher (Alcedo atthis) and Dipper (Cinclus cinclus) (Aves) collected in the lower catchment of River Sabor (NE Portugal), in the scope of the long-term Ecological Monitoring Program (PME) of the Baixo Sabor Hydroelectric Dams (AHBS), promoted by EDP – Energias de Portugal, S.A. This dataset includes results of surveys made in and around the area affected by the dams, from August 2010 to September 2014. Sampling was performed in transects distributed along the lower Sabor river valley (and some tributaries) and in rivers Maçãs and Angueira, from the Sabor mouth up to 42 km upstream. The presence and identity of bird species were assessed by visual and/or acoustic observation, with binoculars. The records include taxa identified at the species level.

The dataset contains occasional records of cliff-nesting bird species of high conservation priority, namely birds of prey (Aves, Accipitriformes and Falconiformes), collected in the lower valley of River Sabor (NE Portugal), in the scope of the long-term Ecological Monitoring Program (PME) of the Baixo Sabor Hydroelectric Dams (AHBS), promoted by EDP – Energias de Portugal, S.A. This dataset includes results of surveys made in and around the area affected by the dam, from February 2010 to September 2014. Data include both occasional observations and observations in the fixed points used to monitor the target species, but performed outside the regular census program. Observations came from all the study area around the Sabor river, from its mouth up to 42 km upstream. The presence and identity of the birds seen were assessed by visual observation with binoculars and/or telescope. The records include taxa identified at the species level.

The dataset contains records of riparian bird species (Aves) of high conservation priority, collected in the lower valley of River Sabor (NE Portugal), in the scope of the long-term Ecological Monitoring Program (PME) of the Baixo Sabor Hydroelectric Dams (AHBS), promoted by EDP – Energias de Portugal, S.A. This dataset includes results of surveys made in and around the area affected by the dam, from February 2010 to September 2014. Data consists of observations of the target species (the Kingfisher and the Dipper) performed in fixed sampling points or transects directed to riparian birds, as well as additional observations. Observations came from all the study area around the Sabor river, from its mouth up to 42 km upstream. The presence and identity of bird species were assessed by visual and/or acoustic observation, with the support of binoculars. The records include taxa identified at the species level.