Birds; black Wheatear; Oenanthe leucura; occurrence; observations; point counts.
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The dataset contains records of black Wheatear (Oenanthe leucura) (Aves, Muscicapidae) collected in plots along the lower Tua River valley and included in the Ecological Monitoring Program of the Foz Tua Hydroelectric Dam, promoted by EDP – Energias de Portugal, S.A. Data were collected in May 2012 and between January and September 2013-2017, during field visits to the known area of occurrence of the target species in the lower Tua valley, in a 5-km buffer around the river itself. The occurrence of the target taxa was documented through 635 observations of the species, in 155 events.