Description Ramphomicron microrhynchum syn. Ornisyma microrhyncha
Magasin de zoologie.
Source http://www.biodiversitylibrary.org/pageimage/2266867
Author Guérin-Méneville, F.-É.
Source: https://commons.wikimedia.org/wiki/File:Magasin_de_zoologie_BHL2266867.jpg

The purple-backed thornbill (Ramphomicron microrhynchum) is a species of hummingbird in the family Trochilidae. It is found in Bolivia, Colombia, Ecuador, Peru, and Venezuela. Its natural habitat is subtropical or tropical moist montane forests.