They begin to sing in the late winter, early spring

它們在冬末春初開始歌唱

and you see that male cardinal dashing across your yard

你看到那隻雄性紅衣主教衝過你的院子

to take up a post to sing it's brilliant whistled song.

要佔一個職位來唱它'的輝煌哨歌。

The song of the cardinal is actually fairly simple.

樞機之歌其實相當簡單。

It's a series of whistled syllables,

它'是一連串的口哨音節。

usually each song is comprised of one to two, sometimes three syllables types.

通常每首歌都是由一到兩個，有時是三個音節類型組成。

One component of a cardinal's song that often goes overlooked, but if you listen

紅衣主教'的歌的一個組成部分，往往被忽視，但如果你聽了

carefully you can actually hear,

仔細你其實可以聽到。

is a churr or purring that occurs at the end of the song.

是指在歌曲結束時出現的顫音或叫聲。

And it's much softer than the actual whistled notes and they don't always give it.

而且它'比實際的哨音要柔和得多，他們並不總是給它。

A female Northern Cardinal

一隻雌性的北紅雀

is as adept as a male at singing.

是像男性一樣善於唱歌。

Often this goes overlooked because we assume it's only the males that sing. But

通常這一點會被忽略，因為我們認為只有雄性才會唱歌。 但是

if you listen carefully, if you watch you may actually see and hear a female singing.

如果你仔細聽，如果你仔細看，你可能真的會看到和聽到一個女性的歌唱。

Humans use their voice box to produce sound.

人類利用自己的語音箱來產生聲音。

We're only able to produce one sound at a time. Birds use another type of organ called the syrinx,

我們'一次只能發出一種聲音。 鳥類使用的是另一種類型的器官，叫syrinx。

and it's located right where the two bronchial tubes come up from each lung.

和它'位於正確的地方兩個支氣管從每個肺部上來。

It's a paired structure, it has two sides to it that are equivalent in their

它'是一個成對的結構，它的兩個面是相等的，它們的。

ability to generate sound, and a bird

發聲能力，和鳥

actually can produce one sound on the left side and another independent sound on the right side.

實際上可以在左邊產生一個聲音，在右邊產生另一個獨立的聲音。

When a cardinal sings a beautiful upwards sweep whistle

當紅衣主教唱出優美的向上掃蕩的口哨時。

it's actually using the left side to produce the lower portion of that whistle.

它'實際上是用左側來產生那哨子的下半部分。

And without any obvious break to us as human beings

而且對我們人類來說，沒有任何明顯的破綻。

it produces the higher pitched portion of that whistle with the right side.

它與右側產生該哨子的高音部分。

Just amazing physiology involved in sound production.

只是聲音製作中涉及到的驚人生理學。

To see a flash of red and then these fantastic bursts of clear whistled song

看到紅光一閃，然後是一陣清脆的口哨歌聲

it's one of those invigorating things that signals the transition from late

它是那些振奮人心的事情之一，標誌著從晚期過渡到現在。

winter into early spring.

冬天到早春。