Chesser, R., Vaseghi, H., Hosner, P., Bergner, L., Cortes-Rodriguez, M., Welch, A., & Collins, C. (2018). Molecular systematics of swifts of the genus Chaetura (Aves: Apodiformes: Apodidae). Molecular Phylogenetics and Evolution, 128, 162-171. https://doi.org/10.1016/j.ympev.2018.07.006