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Jump Back in Time Progressive Era (1890-1913)
 
A horned owl
这是一只角鸮

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第一个鸟类节 (Bird Day)
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鸟类学家说:「蓝知更鸟有呼唤的曲调,以及甜美的柔和歌声。」他们又说:「蓝知更鸟真的是蓝色的,他的颜色就像花朵很少有蓝色般的稀有。」因为美洲地区的鸣鸟,例如蓝知更鸟,已经越来越稀有了,所以保育工作一直持续的在进行。你能想想一个没有鸟类的世界吗?睁开你的双眼,用你的耳朵去聆听,看看你生活的地方有多少种鸟类。

"Bluebirds have a call-note and a sweet warbling song," said the ornithologists. "Bluebirds are true blue, which is as rare a color among birds as it is among flowers." Conservation efforts continue today as songbirds in America, like the bluebird, become more rare. Can you imagine a world without birds? Keep your eyes and ears open and notice the variety of birds where you live.

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