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    The dataset contains records of the Dipper (Cinclus cinclus) (Aves) and other riparian birds collected in the Tinhela river (Tua sub-basin) and included in the Ecological Monitoring Program (2012-17) of the Environmental Impact Assessment of the Foz Tua Hydroelectric Dam, promoted by EDP – Energias de Portugal, S.A. Data were collected in the winter of 2013 and 2017, and in the spring of 2012-2015 and 2017, during field visits to six transects located in the riverbed of the Tinhela river, both in the area affected by the dam, near the mouth, and upstream. All observations were made with binoculars and/or telescopes.