The treeswifts exhibit a wide range of habitat preferences. One species, the
whiskered treeswift, is a species belonging to
primary forest. Highly manoeuvrable, it feeds close to vegetation beneath the canopy, and only rarely ventures into secondary forests or plantations, but never over open ground. Other species are less restricted; the
crested treeswift makes use of a range of habitats including humid forests and deciduous woodland, and the
grey-rumped treeswift occupies almost every habitat type available from the
mangrove forests to hill forests. All species feed on insects, although exact details of what prey are taken has not been studied in detail. Nest-building responsibilities are shared by the male and female. They lay one
egg in the nest, which is glued to an open tree branch. Egg colour varies from white to grey. Little information is available about
incubation times, but they are thought to be longer for the larger species. Chicks hatch with a covering of grey down and are fed a bolus of regurgitated food by the parents. == Species ==