The Masked Trogon (*Trogon personatus*) is a dazzling jewel of the cloud forests, found from Venezuela to Bolivia. Instantly recognizable by its bold, sexually dimorphic plumage, the male boasts a vibrant crimson belly and a metallic emerald-green back, head, and upper breast, all sharply separated by a white chest band. Its most unique characteristic is the "mask" for which it is named—a distinct, bare black patch of skin encircling the eye, contrasting with a bright blue or yellow orbital ring. Females are more subdued, with a brown head and breast, a reddish belly, and a white eye-ring. A special feature is its heterodactyl feet, with the first two toes pointing forward and the last two backward, an adaptation that allows it to perch motionlessly for long periods while sallying out to snatch insects or fruit from the forest canopy.

Faits amusants

The Masked Trogon has a quirky sit-and-wait hunting style, remaining motionless for long periods before sallying out to snatch fruit or insects mid-air, often returning to the exact same perch. Its feet are uniquely heterodactyl, with the first and second toes pointing backward and the third and fourth forward, an adaptation for gripping branches tightly while twisting its body to scan for food. Males perform a bizarre "tail-fanning" display during courtship, rapidly opening and closing their long, square-tipped tail like a black-and-white accordion to flash hidden white barring. Despite their vivid plumage, these birds are notoriously shy and will freeze in place for minutes if startled, relying on their cryptic patterning against dappled forest light rather than fleeing.

Habitats et répartition

The Masked Trogon is primarily found in the humid montane forests of the Andes mountain range, from western Venezuela south through Colombia, Ecuador, and Peru to northwestern Bolivia. It inhabits the interior and edges of subtropical and temperate cloud forests, typically at elevations between 1,200 and 3,000 meters, though it can occur lower or higher locally. This species prefers dense, mossy forest with a high canopy, often near streams or in ravines, but it also occupies adjacent secondary growth and forest clearings with tall trees. Its distribution is discontinuous, with isolated populations in the coastal mountains of northern Venezuela and the Sierra Nevada de Santa Marta in Colombia.

Comportements & Reproduction

The Masked Trogon is generally solitary or found in pairs, with a monogamous breeding system. During courtship, males perform a display of perching upright, drooping their wings, and slowly swiveling their tails from side to side while calling to attract a female. Both sexes participate in excavating a nest cavity in soft, decaying wood, often in a tree trunk or termite mound, which is a unique strategy to avoid competition for tree holes. The female lays two to three white eggs, and both parents share incubation duties, which last about 17 to 19 days. After hatching, the altricial chicks are fed by both adults through regurgitation, with the male frequently bringing larger food items. A notable reproductive adaptation is the birds' use of their weak feet to scrape out the nest chamber, relying on their bills to peck at the substrate, and the nest is often reused in subsequent seasons if undisturbed.

Alimentation

The Masked Trogon is primarily frugivorous, with fruit—especially small, soft berries and drupes—making up the vast majority of its diet, often exceeding 80% of its intake. They pluck fruit while hovering or sallying from a perch, swallowing small items whole and regurgitating large seeds, acting as important seed dispersers in Andean cloud forests. Interestingly, they also supplement their diet with a significant amount of animal protein, particularly during the breeding season, by catching large insects like beetles, caterpillars, and cicadas, as well as small lizards and tree frogs, which they snatch in mid-air or glean from foliage. Unlike many birds, trogons lack a crop and have a weak gizzard, so they digest soft fruits quickly, and they are known to occasionally visit fruiting trees in mixed-species flocks but typically forage alone or in pairs.

Couleurs

The male Masked Trogon has a black face and throat (the "mask"), an iridescent green head and breast, a bright red belly, and a gray back. Females are duller with a brown head, gray breast, and a reddish belly. Both sexes have a white band across the chest and black-and-white barred underwings. Their coloration provides disruptive camouflage in dappled forest light.