Ribeiro, A. de S. and Ferrari, S. F. (2011) “Birds of the Grota do Angico Natural Monument in the semi-arid Caatinga scrublands of northeastern Brazil”, Biota Neotropica. Sao Paulo, Brazil, 11(2). Available at: //www.biotaneotropica.org.br/BN/article/view/793 (Accessed: 2 May 2024).