other falconets, but is the smallest by a small amount. Both sexes have glossy bluish-black , black and outer thighs, and a black mask. The throat, cheeks, and breast are white, changing to pale yellowish-brown on the belly and . The tail is short and black, with the wings reaching halfway to its tip. Males have a white and forehead, while females have this region reddish-brown. Females are also 9 per cent larger in size and have 4 per cent longer tails. In both sexes, the eyes are brown and the cere and legs are dark grey to black. Juveniles are similar to females, but have tawny-buff forecrowns and cheeks, while young females may also show reddish-brown on the forecrown. The species may be confused with the black-thighed falconet, with which its range overlaps, but can be told apart from the latter and all other falconets by the colour of its forehead. The black-thighed falconet also has more intense reddish-brown on the belly and vent, along with white bars on the underside of the tail, which is pure black in the white-fronted falconet. The white-fronted falconet's vocalizations are not well-known, but are assumed to be similar to those of other falconets. It makes a quavering kree-kree-kree. Distribution and habitat The white-fronted falconet is endemic to Borneo, where it is found in the Malaysian states of Sarawak and Sabah, along with the extreme northeastern part of Kalimantan (the Indonesian portion of Borneo). It inhabits open forests, forest edges, clearings with dead trees, and cultivated regions with interspersed trees, and is thought to be especially common on mountainous slopes. It is also infrequently found in mangrove forests. The species is found at elevations of . Behaviour and ecology The white-fronted falconet is found alone or in groups of several individuals. The generation length in the species is 3.2 years. The species mainly feeds on insects such as dragonflies, bees, and cicadas, but has also been reported chasing birds. Hunting parties have been observed in November. The species have been observed hunting from perches, making flights to catch flying insects and then eating the prey around two minutes after returning to the perch. Other hunting behaviours are thought to be similar to those of other falconets, although there may be differences in the hunting techniques of the present species and the black-thighed falconet. The breeding season of the white-fronted falconet is thought to