DE SWARDT, D. H. Alarm calls of African Rock Pipit Anthus crenatus — a new vocalisation. Biodiversity Observations, [S. l.], v. 7, p. 1–3, 2016. Disponível em: https://journals.uct.ac.za/index.php/BO/article/view/310. Acesso em: 7 jul. 2022.