让伟大的后院鸟类计数开始吧！(Let the Great Backyard Bird Count begin!)

是时候尽我们的一份力量帮助科学家了解更多关于全球鸟类种群的信息了。大后院鸟类计数是一项每年四天的活动，起源于美国，但已扩展到全世界。我们鼓励观鸟者密切关注当地的鸟类种类，并通过eBird平台在线报告。例如，如果你在墨西哥中南部，你可能会发现这只在那里过冬的艾伦蜂鸟。该活动的结果被整理并在网上分享给科学家和好奇的人。据估计，全世界有10000种鸟类，这个周末是一个令人兴奋的时间，可以拿起笔记本出门。
原文：
It’s time to do our part to help scientists to learn more about global bird populations. The Great Backyard Bird Count is an annual four-day event that originated in the United States but has expanded to the entire world. Birdwatchers are encouraged to keep an eye out for local species of birds and to report them online via the eBird platform. For example, if you’re in southern central Mexico, you might spot this Allen’s hummingbird who winters there. The results of the event are compiled and shared online for both scientists and curious minds alike. With an estimated 10,000 species of birds worldwide, this weekend is an exciting time to grab a notebook and head outside.
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