Birds like this Harris Hawk can fly where they want to, but have been trained to come back for food.

像这种哈里斯鹰可以飞到任何它们想去的地方，但是经过训练它们会回来觅食。

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Raptors look quite a bit like dinosaurs but they have much more in common with birds than they do with other theropod dinosaurs such as Tyrannosaurus.

迅猛龙看起来有点像恐龙，但是它们与其他兽脚类恐龙比如暴龙相比，与鸟类更相似。

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Many birds like to store food for the winter, which they subsequently retrieve.

许多鸟类喜欢为冬天储存食物，然后会取回。

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And,like birds they have a single opening with which they produce eggs, have sex and expel waste.

VOA: special.2009.07.07

Echidnas are like birds and reptiles because they lay eggs.

VOA: special.2009.07.07

According to one text, their feet resembled horses' hooves, and they sounded like birds.

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They keep the vegetation low in the winter when the sheep are brought down to lower levels, and they provide food for birds like choughs.

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They're shaped like cranes, the long-legged birds that in China symbolize longevity .

FORBES: Life