Diglossa is a genus in the family Thraupidae. They are commonly known as flowerpiercers because of their habit of piercing the base of flowers to access nectar that otherwise would be out of reach. This is done with their highly modified bill, which is typically upswept, with a hook at the tip. Most members of the genus Diglossa are found in highlands of South America (especially the Andes), but two species are found in Central America.
^Wagler, Johann Georg (1832). "Mittheilungen über einige merkwürdige Thiere". Isis von Oken (in German). 1832. cols 275–282 [280–281].
^Paynter, Raymond A. Jr, ed. (1970). Check-List of Birds of the World. Vol. 13. Cambridge, Massachusetts: Museum of Comparative Zoology. p. 399.
^Jobling, James A. (2010). The Helm Dictionary of Scientific Bird Names. London: Christopher Helm. p. 136. ISBN 978-1-4081-2501-4.
^Gill, Frank; Donsker, David; Rasmussen, Pamela, eds. (July 2020). "Tanagers and allies". IOC World Bird List Version 10.2. International Ornithologists' Union. Retrieved 16 October 2020.
Further reading
Mauck, William M. III; Burns, Kevin J. (2009). "Phylogeny, biogeography, and recurrent evolution of divergent bill types in the nectar-stealing flowerpiercers (Thraupini: Diglossa and Diglossopis)". Biological Journal of the Linnean Society. 98 (1): 14–28. doi:10.1111/j.1095-8312.2009.01278.x.
Ridgely, R. S., & Tudor, G. (1989). Birds of South America. Vol. 1. Oxford University Press, Oxford. ISBN 0-19-857217-4