Males and females are similar in appearance and generally look green with blue tails. From the proper angle, one can also catch a glimpse of the glittering, golden-copper throat or the glistening blue crown. Fiery-throated Hummingbirds inhabit montane or cloud forests, second growth, shrubs of the sub-páramo, or highland pastures with trees. Within the forest, they spend most of their time in the canopy, but come much lower near edges, openings, and in second growth. They most often forage on epiphytic flowers by piercing long-tubed flowers or by using holes made by bees. Both sexes are aggressive and defend flower territories during the nonbreeding season. During breeding, males continue to defend resource-rich flower patches and allow females to extract nectar from their flowers.