The old man asked him, "Did you notice the beautiful flowers along the road and the birds singing in the trees?"

这个老人问他：“你有没有注意到路旁那些美丽的花朵和树上歌唱的鸟儿？”

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The birds singing gaily, that came at my call.

一呼即来的鸟儿正在欢唱。

youdao

She awakened to the sound of birds singing.

她醒来听到鸟的叫声。

《牛津词典》

Even the birds seemed to have stopped their singing.

VOA: special.2010.05.15

He went out and saw his mum in the trees, in the clouds, or when the birds were singing.

他走出去，看到自己的母亲,在树上，在云里，在鸟儿的歌声中。

普林斯顿公开课 - 人性课程节选

Consequently, over the past week, inhabitants of villages and parts of London under the Heathrow flight path could hear the birds singing on these beautiful spring days, not obscured by the cacophony of planes overhead.

FORBES: The Icelandic Volcano And Quiet Skies Over London

The birds are singing, the flowers are blooming and May Day is soon upon us.

NPR: Annoying Music for May Day

The birds taken include Mexican house finches, green singing finches, java sparrows, Bengalese finches, diamond doves, painted finches and waxbills.

BBC: Exotic birds stolen in Tadley, Hampshire