单词rufous-hummingbird
网络: 棕煌蜂鸟；褐背蜂鸟；棕褐蜂鸟
The wake of a hovering rufous hummingbird. Yellow vectors show air velocity, revealed by particle image velocimetry.
棕煌蜂鸟悬停时引发的尾流。黄色的矢量位点是通过粒子图像测速技术显现的气流速度。
ON THE WING The wake of a hovering rufous hummingbird, top.
棕煌蜂鸟悬停时引发的尾流。
But the Rufous Hummingbird migrates the longest distance, from Mexico to Alaska and back, totaling 5, 000 miles.
但是棕煌蜂鸟才是迁徙最长距离的蜂鸟，牠们从墨西哥飞到阿拉斯加后又飞回的距离总计五千英里。