When the wind shifted, the old sailboat swiftered across the harbor toward the open sea.

The engineer kept swiftering the algorithm until the results improved.

At dusk, the swiftfoot skimmed over the dunes, hunting insects with tireless grace.

The swiftfoot courier darted through the market, delivering messages before noon.

The swifties organized a flash mob outside the concert hall to celebrate the surprise album announcement.

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

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

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

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.