Diard's Trogon

The Diard's trogon is a medium-sized bird, measuring approximately 34 cm (13.4 in) in length and weighting about 100 g. Like other trogons, it has hunched shoulders, a long tail and vibrant plumage with a striking mix of contrasting colors. Males and females are similar in size but showcase differences in their plumage. Both males and females have a blue bill with a black tip. The adult male has a black head and upper breast paired with a purplish-blue eye ring. Its mid-crown to hind-crown has a maroon wash, while the hind collar and breastline are pink. The male's belly and vent are bright red, and its upperparts and uppertail are pale brown. Its undertail is marked with blackish patterns that appears grayish-white. The adult female has a plumage with more earthy tones and softer hues, featuring a muted brownish head and upper breast, with lower underparts displaying a brighter pinkish-red hue compared to the male. Juvenile individuals look like females.

The Diard's trogon is primarily found in the middle and lower layers of both primary and logged forests within lowland and hilly regions, extending up to an elevation of 900 m in Peninsular Malaysia, while in Thailand, it is encountered at altitudes rarely exceeding 600 m. It is also present in peat swamp forests found in Brunei and Sumatra, highlighting its adaptability to diverse habitats. In Borneo, its habitat includes a variety of environments such as lowland, upland, and highland dipterocarp forests, as well as logged dipterocarp areas, streamside vegetation, and kerangas, which is an impoverished heath forest. Additionally, it can be seen in cocoa plantations located near secondary forest areas, typically at elevations up to 1200 m, although it is usually found at significantly lower altitudes. Diard's Trogon inhabits regions in Indonesia and the Malaysian sections of Borneo, along with the island of Bangka, located east of Sumatra in Indonesia, as well as the Thai peninsula.

Their diet consists of a variety of insects, including caterpillars, beetles, stick insects, locusts, and other members of the Orthoptera order. In addition to these insects, they also consume various fruits including those from different species of Ficus.