Overview
The Green-Backed Trogon (Trogon viridis), previously recognized as the Amazonian White-tailed Trogon, is a breathtakingly vibrant canopy bird widespread throughout the lowland rainforests of South America. Famous for its dazzling plumage that shimmers between rich emerald-green, royal sapphire, and intense marigold-yellow, this quiet and upright forest sentinel perches motionless for long intervals in the mid-story before executing sudden, acrobatic sallies to snatch fruit or insects from the underside of leaves.
Biology and Physical Characteristics
Adult male Green-Backed Trogons possess an iridescent bluish-black crown and face contrasted by a brilliant cobalt-blue eye-ring and a pale ivory-blue bill. The nape, mantle, and back display metallic iridescent green that glints gold in direct sunlight, transitioning to a rich golden-yellow belly divided from the dark breast by a crisp white crescent band. The underside of the tail feathers is gleaming, immaculate white, serving as a dynamic visual signaling beacon when flicked open during territorial displays. Like all trogons, it possesses heterodactyl feet, with toes 1 and 2 pointing backward and toes 3 and 4 forward.
Behavior and Ecology
Operating as an omnivorous sally-gleaner, Trogon viridis feeds heavily on wild figs, mistletoe berries, and palms, supplementing its diet with large stick insects, katydids, and spiders. To nest, breeding pairs use their robust bills to excavate chambers directly inside active arboreal termite mounds (Nasutitermes). The aggressive resident termites wall off the bird’s chamber with carton material, creating a warm, pest-free nesting cavity with built-in biological protection against snakes and monkeys.
Conservation and Human Impact
Assessed as Least Concern across its vast South American range, the Green-Backed Trogon maintains healthy, stable populations throughout the Amazon basin. It exhibits moderate tolerance for mature secondary growth, though large-scale deforestation and intense canopy fragmentation can limit local nesting density due to the reduction of mature arboreal termite mounds. Its role as a major seed disperser promotes natural botanical regeneration in tropical forests.
Interesting Factoid
Green-backed trogons do not build traditional twig nests—instead, they chew their way into giant, active termite nests high in trees, letting the biting termites serve as a 24-hour security force for their eggs!
Last updated: October 2026