MIKULA, P.; TRYJANOWSKI, P. Internet searching of bird-bird associations: A case of bee-eaters hitchhiking large African birds. Biodiversity Observations, [S. l.], v. 7, p. 1–6, 2016. Disponível em: https://journals.uct.ac.za/index.php/BO/article/view/373. Acesso em: 4 jul. 2022.