Chirruping [verb]

It would have been impossible to be out of sorts in his company; he was ever chirruping round one.

Indeed, The Hopper's spirits rose under his continued "goo-gooing" and chirruping.

This spring the little singers are out before the little sparrows and have already begun chirruping.

We love each other, but what is it that makes human love any nobler than the chirruping of birds if not its duration?

I look out of the window and see a sparrow on a neighbouring tree, loudly chirruping.

But to-night, when the keen chirruping ceased, there was still another sound that did not cease—a faint, appealing cry.

Again, I took an unmutilated male, which at once turned and crawled toward the chirruping female.

Each little one puts his head on one side as he inserts his bill, chirruping briskly, and bothering him.

A hidden squirrel broke out with brisk scolding, a small chirruping voice in a great silence.

Some tiny bird, disturbed by these unwonted visitors, began chirruping and fluttering, but was soon still again.