Songbirds chirped softly over a sound system.

The intercom on her desk across the room chirped softly.

Softly chirping, one lizard bent down and, with a quick shake of its head, tore a ragged chunk of flesh from the baby.

Blawp reached up to touch Penny's cheek gently in turn, chirping softly.

He chirped softly, plaintively, and was silent.

Zair chirped softly, curled on the pillows above Robinton's ear.

Above us in a tree, some night bird chirped softly.

The double tone continued to chirp softly beneath their debate.

The computer console chirped softly as Scotty worked over it, preparing another display.

Scotty raised his eyebrows, and bent over the computer console again, which chirped softly as he started doing some calculations.