Birds observation on the western regions of Ukraine in 1963-1994

The dataset contains the results of year-round records or individual observations of 251 species of birds in the territory of western Ukraine, namely Volyn, Lviv, Ivano-Frankivsk, Ternopil, Khmelnytskyi, Rivne, Zakarpattia, Chernivtsi administrative regions. 655% (7240 records) of all observations are located in Volyn and Lviv regions. The observations were carried out in very diverse physical and geographical zones: Volyn Polissia, Male Polissia, Podillia Highlands, the mountain system of the Ukrainian Carpathians, the Transcarpathian Lowlands and others.