Silva, G. A. da, R. G. Frederico, S. M. Almeida, G. N. Salvador, G. B. Malacco, and C. de Melo. “Conservation of the Black-Collared Swallow, Pygochelidon Melanoleuca (Wied, 1820) (Aves: Hirundinidae) in Brazil: Potential Negative Impacts of Hydropower Plants”. Biota Neotropica, vol. 22, no. 1, Jan. 2022, //www.biotaneotropica.org.br/BN/article/view/1888.