Züchner, T., P. F. D. Boesman, and G. M. Kirwan (2020). Green-tailed Trainbearer (Lesbia nuna), version 1.0. In Birds of the World (J. del Hoyo, A. Elliott, J. Sargatal, D. A. Christie, and E. de Juana, Editors). Cornell Lab of Ornithology, Ithaca, NY, USA. https://doi.org/10.2173/bow.grttra1.01
Züchner, T., P. F. D. Boesman, and G. M. Kirwan (2020). Black-tailed Trainbearer (Lesbia victoriae), version 1.0. In Birds of the World (J. del Hoyo, A. Elliott, J. Sargatal, D. A. Christie, and E. de Juana, Editors). Cornell Lab of Ornithology, Ithaca, NY, USA. https://doi.org/10.2173/bow.blttra1.01
worldbirdnames.org
Gill, Frank; Donsker, David; Rasmussen, Pamela, red. (January 2023). «Hummingbirds». IOC World Bird List Version 13.1. International Ornithologists' Union. Henta 6. juli 2023.