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1·Unlike the song sparrow, which repeats one of its several song types in bouts before switching to another, the warbler continuously composes much longer and more variable songs without repetition.

北美歌雀在切换到另一种类型之前，会一声一声地重复其中的一种，与之不同的是，北美歌雀会连续地创作更长的、更多变的歌曲，而不会重复。

2·We repeated this experiment in a number of song sparrow territories.

我们在一些歌雀的领地重复了这种实验。

3·Then song sparrow will return and sing, the frogs will awake, the warm wind will blow again.

百灵会回来唱歌，青蛙也会醒来，又会吹起暖暖的风。

4·The faint silvery 1)warblings heard over the partially bare and moist fields from the 2)bluebird, the 3)song sparrow, and the 4)redwing, as if the last flakes of winter tinkled as they fell!

知更鸟、歌雀、红翼鸫在部分光秃而潮湿的田野里轻吟出银铃般的旋律，犹如冬天最后的雪花簌簌地飘向大地。

5·Some birds, such as the white-crowned sparrow, have only one song.

有些鸟，例如白头雀，只会唱一种歌曲。

6·He sent a sparrow to lighten my life with song.

上帝派遣一只唱歌的麻雀来点亮我的生活。

7·A common North American sparrow (Melospiza melodia) having streaked brownish plumage and noted for its melodious song.

一种常见的北美雀鸟(歌雀)，长有条纹状、褐色的羽毛，以其宛转动听的歌声著称。