Schulenberg, T. S. (2020). Green Thorntail (Discosura conversii), version 1.0. In Birds of the World (T. S. Schulenberg, Editor). Cornell Lab of Ornithology, Ithaca, NY, USA. https://doi.org/10.2173/bow.gretho1.01
Züchner, T. and G. M. Kirwan (2020). Wire-crested Thorntail (Discosura popelairii), 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.wictho2.01
Züchner, T., G. M. Kirwan, and P. F. D. Boesman (2020). Black-bellied Thorntail (Discosura langsdorffi), 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.bkbtho1.01
Züchner, T., P. F. D. Boesman, and C. J. Sharpe (2020). Coppery Thorntail (Discosura letitiae), 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.coptho2.01
Züchner, T., G. M. Kirwan, and P. F. D. Boesman (2020). Racket-tipped Thorntail (Discosura longicaudus), 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.ratcoq2.01
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