DIXON, R.; AINSLEY, J. A blue sunbird: Colour variation as an arid climate adaptation in the Malachite Sunbird Nectarinia famosa. Biodiversity Observations, [S. l.], v. 7, p. 1–3, 2016. Disponível em: https://journals.uct.ac.za/index.php/BO/article/view/384. Acesso em: 30 jun. 2022.