A nest with young birds in it.

是个鸟窝，里面有许多刚出生的小鸟。

There will soon be young birds in the nest.

很快得鸟巢里就会有幼鸟破壳而出。

The two other young birds learned the same lesson.

还有两只小燕子也同样学到了这一课。

These young birds are almost ready to leave the nest.

这些小鸟们已经为离巢做好了准备。

Young birds learn their vocalizations much like young humans learn languages.

幼鸟学习发声就像年轻人学习语言一样。

Though they called and called to the young birds, there was no answer.

即使它们不停地呼唤鸟宝宝，还是没有应答声。

The young birds instinctively copied their father's song despite its unstructured unattractive sound.

幼鸟本能地模仿其父亲的叫声，即使这声音无序又难听。

That means fewer honeyeater adults are nearby during the young birds' first year of life.

这就意味着在幼鸟生活的第一年，周围的成年王摄蜜鸟会很少。

There will soon be young birds in the nest. Some day we may come to see them.

鸟巢里很快就会有幼鸟破壳而出。不知哪天我们就可以看到这些小家伙了。

To help young birds in reproduction programs learn their notes, they have started playing male song recordings.

为了帮助在繁殖项目中的幼鸟学习它们的音调，他们已经开始播放雄鸟歌唱记录。

" There will be fewer young birds in the population that are able to recruit into the breeding population."

“能够进行繁殖的幼鸟数量将会减少。”

There the young birds were duly fledged, and from that window they began their flight, and entered upon life.

在这个窗户上方四只小鸟长大了。

The project moved about 40 young birds from Hawaii's Tern Island to Oahu, one of the state's biggest islands.

该项目将大约40只幼鸟从夏威夷的特恩岛转移到了该州最大的岛屿之一瓦胡岛。

But when those young birds do not have older ones to teach them, they have less success attracting mates.

但是当那些幼鸟没有年长的鸟类教时，它们就不太可能成功吸引配偶。

They found that the answer was both. Younger birds groomed older ones more often than older ones groomed the youngsters.

他们发现答案是两者兼而有之。就仓鸮而言，年幼者为年长者梳毛的频率要高于年长者为年幼者梳毛的频率。

After about four months, the young birds are released.

大约四个月后，幼鸽被放飞。

Younger birds groomed older ones more often than older ones groomed the youngsters.

较年长的鸟更常为年长的鸟梳理毛发，较年轻的鸟为幼鸟梳理毛发。

The young birds weigh only a few grams.

【weigh】雏鸟重量只有几克。

And the young birds, in early spring, you see them starting to learn to fly.

奥利：还有幼鸟， 在早春，你会看到它们开始学飞。

In a little while the mother swallow darted off by herself, and then flew back to one of the young birds.

不一会儿，燕子妈妈自己飞走了，然后又飞回到一只小燕子身旁。