The swiftwings skimmed the canyon at dawn, their silver feathers flashing in the light.

A lone swiftwing darted over the billabong at dusk, its metallic sheen catching the last light.

At dusk, the cave swiftlets skimmed the valley, their high-pitched calls echoing from the cliffs.

Conservationists are monitoring the population decline of Christmas Island swiftlets after the recent cyclones.

A cave swiftlet darted from the dim mouth of the chamber, its tiny wings beating like a humming blur.

A Bornean swiftlet darted through the cave entrance at dusk, its high-pitched calls reverberating off the limestone walls.

The conservationists monitored the nesting habits of the Christmas Island swiftlet throughout the breeding season.

Bornean swiftlets foraged over the mangroves at dawn, their calls echoing through the air.

Among the messengers, she ran swiftliest to ensure the letter reached the general.

She finished her tasks swiftlier than anyone expected, surprising the whole team.