The great tit basically splits open the skull at the back and eats the brain. That's the gist of it.

“大山雀主要从斑姬鹟后面劈开其头骨，然后吃掉它们的大脑。这就是大山雀的攻击要点。”

Now Suzuki and his colleagues have found that the great tit uses those calls together to deliver both messages to other birds.

现在铃木和他的同事们发现大山雀也使用这样的叫声向其他同类传递信息。

Toshitaka Suzuki, of Japan's Graduate University for Advanced Studies, has been listening to the calls of the Japanese great tit for the past decade.

在过去10年中，日本高级研究所的铃木俊孝一直从事本国大山雀叫声的研究。

The great tit (Parus major) presented a similarly worrying increase, with less than 3% infected with malaria before 1995 but closer to 15% in recent studies.

大山雀(Parus major)的患病率有类似令人担忧的增加，1995年之前不到3%，而最近接近15%。

But it turns out a bird may also vocalize with syntax rules—the Japanese great tit, a bird that's a close relative of North America's very own chickadee.

但研究结果表明鸟类的叫声也有自己的句法规则—比如北美山雀的近亲，日本大山雀就是这样。

Upon closer examination the researchers found that 14 species of bird lived in both regions, including the barn swallow, great tit, great reed warbler, buzzard and Eurasian jay.

经过进一步调查，研究人员发现两地有14种相同的鸟类，包括家燕、大山雀、大苇莺、鵟、松鸦。

They determined that warmer winters can boost resident great tit numbers—increasing the chance of flycatcher slaughter.

他们确定，温暖的冬天可以增加常驻山雀的数量——增加捕蝇器被屠杀的机会。

These include, known as the ABC call, which alerts other great tits to the presence of a predator, and the D call, which signals the birds to approach the caller.

其中包括用以警示其他大山雀这里有捕食者的ABC叫声，还有示意其他鸟可以接近的D叫声。