EDIA – Global Bird Monitoring Program of the Alqueva Dam (EFMA) Secundary Irrigation Network (block D: irrigation blocks of (irrigation blocks of Alvarrão, Brinches, Brinches-Enxoé, Caliços-Machado, Caliços-Moura, Orada-Amoreira, Pias and Serpa): Bird Atlas - distributions [winter - spring 2021 and winter 2022]

The dataset contains records of all birds collected in the area of the block D of the Secundary Irrigation Network of the Alqueva Dam (irrigation blocks of Alvarrão, Brinches, Brinches-Enxoé, Caliços-Machado, Caliços-Moura, Orada-Amoreira, Pias and Serpa) and in a control zone, performed within the General Bird Monitoring Plan of the area, promoted by EDIA, S.A. Data were collected in the spring 2021 and winter 2022, in 540 sampling squares of 1x1 km (UTM grid), distributed in the area affected by the Irrigation Block (442 “impact” squares) and in a control area (92 “control” squares), stratified by habitat.

A total of 512304 contacts was obtained, for 148 species and/or genus of birds.