We've learnt a great deal about the ability of NewCaledonian crows to use tools, and some very interesting research is being carried out into them.
我们已经了解了很多关于新喀里多尼亚乌鸦使用工具的能力，并且正在对它们进行一些非常有趣的研究。
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One NewCaledonian crow, called Betty, bent some straight wire into a hook and used it to lift a small bucket of her favourite food from a vertical pipe.
I'm going to talk today about research into a particular species of bird—the NewCaledonian crow, whose natural habitat is small islands in the Pacific Ocean.