The Ruby-topaz Hummingbird feeds on flower nectar, along with small insects and spiders. Males have a red crown and shining golden throat; females are bronze-green. Its range includes Caribbean islands and northern to central South America.
Males have a ruby-red crown extending to the nape, a shining golden throat, and green to dark-brown upperparts. Females have bronze-green upperparts, pale grey underparts, and a tail with white tips.
During the day it feeds on nectar, hovering or hanging at flowers, and also takes small insects and spiders.
An extinction-risk assessment has not been added yet.