Posso, Sérgio Roberto, Reginaldo José Donatelli, Vitor Q. Piacentini, and Anderson Guzzi. “Phylogeny and Classification of the Bucconidae (Aves, Galbuliformes) Based on Osteological Characters”. Papéis Avulsos de Zoologia 600 (June 8, 2020): e20206027. Accessed March 1, 2021. https://www.revistas.usp.br/paz/article/view/165228.