Species of hummingbird
The royal sunangel (Heliangelus regalis ) is an endangered species of hummingbird in the "coquettes", tribe Lesbiini of subfamily Lesbiinae . It is found in Ecuador and Peru .[ 4] [ 5] [ 6]
^ BirdLife International (2022). "Royal Sunangel Heliangelus regalis " . IUCN Red List of Threatened Species . 2022 : e.T22687901A210187058. Retrieved 23 July 2022 .
^ "Appendices | CITES" . cites.org . Retrieved 2022-01-14 .
^ Fitzpatrick, J.W.; Willard, D.E.; Terborgh, J.W. (1979). "A new species of hummingbird from Peru". Wilson Bulletin . 91 : 177–186.
^ Gill, F.; Donsker, D.; Rasmussen, P. (July 2021). "IOC World Bird List (v 12.1)" . doi :10.14344/IOC.ML.11.2 . Retrieved January 15, 2022 .
^ HBW and BirdLife International (2020) Handbook of the Birds of the World and BirdLife International digital checklist of the birds of the world Version 5. Available at: http://datazone.birdlife.org/userfiles/file/Species/Taxonomy/HBW-BirdLife_Checklist_v5_Dec20.zip [.xls zipped 1 MB] retrieved May 27, 2021
^ Remsen, J. V., Jr., J. I. Areta, E. Bonaccorso, S. Claramunt, A. Jaramillo, D. F. Lane, J. F. Pacheco, M. B. Robbins, F. G. Stiles, and K. J. Zimmer. Version 24 August 2021. Species Lists of Birds for South American Countries and Territories. https://www.museum.lsu.edu/~Remsen/SACCCountryLists.htm retrieved August 24, 2021