The Green broadbill is a small species in the broadbill family and can be identified by means of its vibrant green plumage. These birds are sexually dimorphic, meaning that males and females look different. Males have a black dot behind their ears and black bands across their wings, females have feathers of a duller green and no black markings.
The Green broadbill occurs in Indonesia, Malaysia, Myanmar, Thailand, on the islands of Sumatra, Borneo and the Malay Peninsula, in lowland forests of broadleaved evergreen and lower montane rainforest.
Little is known about the social behavior of Green broadbills. It is very hard to notice them as they sit motionless within the canopy or just beneath it, flying quickly to a new location when disturbed. Their foliage-green coloring provides excellent camouflage. Broadbills generally are resident species; however, they often travel to a different altitude as seasons change, in dry seasons sometimes moving beyond their normal range when searching for food. Some species are nomadic in their search for fruiting trees; generally species that eat fruit are more nomadic than those that eat insects. This suggests that Green broadbills exhibit such nomadism, according to the seasonality of fruiting trees. Broadbills show crepuscular activity patterns and are generally gregarious.
Little is known about the mating system of Green broadbills. Broadbills may exhibit either a monogamous mating system (one male mates with one female exclusively) or polygynous (with a lek system) when one male mates with multiple females. The breeding season is known to occur in from February to April in Myanmar, after the heavy rains of the early part of the northeast monsoon (major period of rainfall activity) in the Malay Peninsula and from March to June in Thailand. Male green broadbills perform a spinning courtship display. During the mating season, females weave a long, tubular nest from grasses in which to rear their offspring. A typical nest has 2-3 cream or yellow eggs. Young fledge at 22 to 23 days.
The main threat to this species is ongoing habitat loss as their lowland rainforest is rapidly disappearing. Another threat is forest fires.
According to IUCN, the Green broadbill is fairly common throughout its range but no overall population estimate is available. Currently this species is classified as Near Threatened (NT) on the IUCN Red List and its numbers today are decreasing.
The Green broadbill plays the important role of seed disperser. Its feeding habits help distribute fig seeds around the forest floor.