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清晨的空气更凉爽、更干燥，就像一个效果很好的录音棚，鸟儿在此时歌唱能传递出清晰的音质。因为鸟儿的声音各有不同，这种清晰度可以让听得见的鸟儿更容易识别出它们的声音。There used to be a prevailing theory that birds sang so much in the mornings because the sounds could travel greater distances due t...
清晨的空气更凉爽、更干燥,就像一个效果很好的录音棚,鸟儿在此时歌唱能传递出清晰的音质。因为鸟儿的声音各有不同,这种清晰度可以让听得见的鸟儿更容易识别出它们的声音。 There used to be a prevailing theory that birds sang so much in the mornings because the sounds could travel greater distances due to...
If you live in the Eastern or Central parts of the US, it’s possible you’ve heard the call of thedickcissel. This bird is “abunting, having a brownish back streaked with black and a yellowish breast.” Their call often sounds like a buzzy “dick-see-see,” hence their unique name...
Another theory argues that birds use the morning vocals to project an image of strength. By singing with fervor, they’re letting other birds know they survived the night—no guarantee in nature—and would make for an ...
but we cannot tell why they leave the sunny south to comeback to us in the spring.We know only that many of them pke to make their nests and rear theiryoung in the north.We are sorry to see them go,but we know that when winter is over they will come back to us.In which season...
“People had long noticed these birds produced these loud sounds.” Trevor Murray, a researcher at the Australian National University said. “My supervisor Rob Magrath and May Hingee thought they were used as an alarm. So they did some playbacks and they could show quite strongly that if ...
There used to be a prevailing theory that birds sang so much in the mornings because the sounds could travel greater distances due to less atmospheric turbulence, but it was disproven by researchers at the University of Western Ontario in 2003. They played recordings of sparrows at dawn and mid...
that terrorism is the only way their voices will be heard, by Israel and by the world at large, but every terrorist attack has pushed the Israeli public further away from any belief that peace is possible, and therefore from any willingness to make difficult compromises for that unreachable ...
He then reaches the center, which he finds Billy, a sign, that was making annoying sounds. At first he brushes it aside but after being hit by it, he fights it and destroys it. When he enters the center, he finds Matilda, that is a quite annoying and attempting upbeat teacher and ...