The annual bird migration has been going on for thousands of years.

每年一度的鸟类迁徙已经进行了几千年。

Elmore's next project will use radar to help predict bird migrations.

埃尔莫尔的下一个项目将使用雷达来帮助预测鸟类迁徙。

There is, however, a small but growing number of local birders who closely monitor bird migration.

不过，有数量不多但一直增加的当地观鸟者在密切监视鸟类的迁徙。

But, environmental groups, universities and farmers in Veracruz are working together to develop ecotourism linked to the yearly bird migration.

但是，韦拉克鲁斯州的环保组织、大学和农民正在共同努力发展与每年鸟类迁徙相关的生态旅游。

Familiar with the spectacle of yearly bird migrations, the Shao Hao people chose a symbol of a bird as their totem.

少昊氏族人熟悉鸟群每年迁徙的奇景，他们选择了一种鸟的符号当作他们图腾。

It allowed nearly anyone to record bird migration at night.

它几乎允许任何人记录鸟类在夜间的迁徙。

And when they did, they peered more deeply into the mysteries of bird migration than arguably anyone ever had.

当他们这样做时，他们比任何人都更深入地窥探鸟类迁徙的奥秘。

Benjamin grew up in New York State and is a postdoctoral research fellow who studies the science of bird migration.

工作：本杰明在纽约州长大，是一名研究鸟类迁徙科学的博士后研究员。

You've been sending us lots of questions about bird migration and physics. So we found one of our favorite friends to offer up some answers.

您向我们发送了很多关于鸟类迁徙和物理学的问题。所以我们找到了我们最喜欢的朋友之一来提供一些答案。

I've loved having a family and love, but really my life is permeated by my love for studying bird migration, especially these nocturnal flights.

我喜欢拥有家庭和爱情，但实际上我的生活充满了对研究鸟类迁徙的热爱，尤其是这些夜间飞行。

" Many of my clients have been at other famous bird migration sites but say they never have seen anything like" the river of raptors in Veracruz, said Steven Koevoet.

史蒂文·科沃特说：“我的许多客户都去过其他著名的鸟类迁徙地，但他们说他们从来没有见过诸如韦拉克鲁斯的猛禽河之类的现象。”

She can tell you just by observing her environment, by observing the wind direction, the cloud position, the bird migration, the size of fruits, the plant flowers.

她可以通过观察她的环境， 通过观察风向，云的位置，鸟类的迁徙， 果实的大小， 植物的花朵来告诉你。

But what really sealed Benjamin's fate as a nighttime bird migration fanatic was a talk he attended at the lab on, you probably guessed it, nocturnal migration.

乔布斯：但真正决定本杰明作为夜间鸟类迁徙狂热者的命运的是他在实验室参加的一场演讲，主题是夜间迁徙，你可能猜对了。

At Colorado State University Assistant Biology Professor Kyle Horton works on Birdcast which Maps bird migration like this, showing nearly 800 million birds over the United States on just one night.

科罗拉多州立大学生物学助理教授凯尔·霍顿在 Birdcast 公司工作，该公司绘制了这样的鸟类迁徙图，显示了美国近 8 亿只鸟在一个晚上的迁徙情况。

Richard, his wife Jean Weber and their colleague Bill Cochran were the first people to make recordings of nocturnal flight calls as they studied bird migration.

工作：理查德、他的妻子让·韦伯和他们的同事比尔·科克伦是第一批在研究鸟类迁徙时记录夜间飞行呼叫的人。

And today you'll not only learn how it's possible to see bird migrations in darkness but will also get the actionable intel on how you, too, can join the nighttime bird surveillance network.

今天, 你不仅会了解如何在黑暗中看到鸟类迁徙, 而且还将获得有关如何加入夜间鸟类监测网络的可操作信息。