Clements, J. F., T. S. Schulenberg, M. J. Iliff, S. M. Billerman, T. A. Fredericks, J. A. Gerbracht, D. Lepage, B. L. Sullivan, and C. L. Wood. 2021. The eBird/Clements checklist of Birds of the World: v2021. Downloaded from https://www.birds.cornell.edu/clementschecklist/download/ Retrieved August 25, 2021
doi.org
Arizmendi, M. d. C. (2021). Golden-crowned Emerald (Cynanthus auriceps), version 1.1. In Birds of the World (T. S. Schulenberg, Editor). Cornell Lab of Ornithology, Ithaca, NY, USA. https://doi.org/10.2173/bow.goceme1.01.1 retrieved February 14, 2022
Nuñez-Rosas, Laura E.; Ramírez-García, Enrique; Lara, Carlos; del Coro Arizmendi, María (2021). "Nest description, nest survival, and habitat use of three resident hummingbird species in western Mexico". The Wilson Journal of Ornithology. 133 (2): 236–246. doi:10.1676/20-00065. S2CID245539704.
Nuñez-Rosas, Laura E.; Ramírez-García, Enrique; Lara, Carlos; del Coro Arizmendi, María (2021). "Nest description, nest survival, and habitat use of three resident hummingbird species in western Mexico". The Wilson Journal of Ornithology. 133 (2): 236–246. doi:10.1676/20-00065. S2CID245539704.
worldbirdnames.org
Gill, F.; Donsker, D.; Rasmussen, P., eds. (January 2022). "Hummingbirds". IOC World Bird List. v 12.1. Retrieved January 15, 2022.