Following the flow of wind means that they're always heading toward areas of low pressure, places where wind meets rain and vegetation starts to grow. As they fly, swarms join up with other swarms to form gigantic plagues several billions strong and as much as 40 miles wide. They will consume every edible thing that lies in their path. This is one of planet Earth's greatest spectacles. It's rarely seen on this scale and it won't last long. Once the food has gone, the steady roar of a billion beating locust wings will once again be replaced by nothing more than the sound of the desert wind.


随风飞行意味着它们总是向气压低的地方飞，也就是风雨相遇，植物开始生长的地方。飞行过程中，几个蝗虫群相遇，形成巨大的害虫群，数量达几十亿只，宽度达数六七十公里。它们会把沿途的一切可吃的东西都吃光，这是地球上最壮观的场景之一。这种场景并不多见，而且不会持续太久，食物吃完之后，再次取代几十亿只蝗虫拍击翅膀的声音的，不是别的，是沙漠的风声。