虽然你是这么认为，但是有一项研究显示鸣鸟的骨头实际上是相当坚固的。

Or so you'd think. But a new study shows that songbirds' bones are actually pretty tough.

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鹎一种雀形目鸟类，主要指东半球热带的鹎科的鸣鸟，有灰色的或褐色的羽衣。

Any of various passerine chiefly tropical old world songbirds of the family pycnonotidae having grayish or brownish plumage.

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绝大多数的小鸣鸟都不会游泳，所以他们会寻找有落脚地方的浅水。

Most songbirds can't swim, so they seek shallow water with sure footing.

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