Any of several predominantly white,swift-flying sea birds of the genus Phaethon,of warm regions,having small weak legs and a pair of long,slender,central tail feathers.

• 热带鸟产于温暖地区的鹲属几种主要为白色的，飞行速度较快的海鸟，其腿细小瘦弱，长有一对细长的中央尾羽。