The explosion scattered a flock of birds roosting in the trees.

爆炸声把栖息在树丛中的鸟群惊散了。

《牛津词典》

Seeing a flock of birds in the woods, it could not help diving down, tweeting like an eagle.

看见树林中聚集的鸟群，它忍不住像老鹰一样鸣叫着扑下去。

youdao

The mob decides in unison, without lateral communication, like a flock of birds taking off, to pull up once more.

没经过沟通，众人像一群起飞的鸟一样，一致决定再次拉起飞机。

youdao

That means it is easier for planes with only two engines to strike a flock of birds and lose power in both engines.

VOA: special.2009.04.01

You've probably heard the phrase "Birds of a feather flock together" and that's true when it comes to romance.

你们可能听过一个成语,物以类聚，人以群分“,恋爱还真是这样。

耶鲁公开课 - 心理学导论课程节选

Birds of a feather may flock together but opposites don't really attract each other.

人以群分,反差太大，不容易吸引对方。

耶鲁公开课 - 心理学导论课程节选

An analogy from nature might be a flock of birds on the ground becoming startled and taking flight in a synchronized wave.

FORBES: Study: Financial Reporters' Bubbly Word Choice Predicts Stock Market Bubbles

The circles of influence in a flock of birds resemble (perhaps not flatteringly) how our online social networks shape traffic flow to content.

ENGADGET: Editorial: Tech is a flock of starlings

Sullenberger and his crew safely landed the damaged airplane, believed to have hit a flock of birds, in the Hudson on January 15.

CNN: Schwarzenegger honors Hudson hero pilot