LOPES, L. E.; GONZAGA, L. P. Morphological data support the recognition of four species in the genus Sirystes Cabanis & Heine, 1859 (Aves: Tyrannidae). Zootaxa, Auckland, New Zealand, v. 4127, n. 3, p. 401–431, 2016. DOI: 10.11646/zootaxa.4127.3.1. Disponível em: https://www.mapress.com/zt/article/view/zootaxa.4127.3.1. Acesso em: 2 may. 2025.