Pereira, Karla Dayane de Lima, Arthur Ângelo Bispo de Oliveira, y Daniel de Paiva Silva. 2023. «Range Extension of the Ladder-Tailed Nightjar, Hydropsalis Climacocerca Tschudi, 1844, in the Brazilian Cerrado, With the First Record for the State of Maranhão». Revista De Biologia Neotropical Journal of Neotropical Biology 20 (1). Goiânia:50-53. https://revistas.ufg.br/RBN/article/view/75566.