Gussoni, C. O. A., & Pongiluppi, T. (2021). Foraging behavior and association with mixed flocks by the Critically Endangered Alagoas Tyrannulet Phylloscartes ceciliae (Aves: Passeriformes: Tyrannidae). Journal of Threatened Taxa, 13(2), 17646–17650. https://doi.org/10.11609/jott.6374.13.2.17646-17650 (Original work published February 26, 2021)