twittering

The chirping of birds; also, any series of small, clear, intermitted sounds resembling the notes of a bird.

A quivering; a flutter; a state of tremulous excitement indicative of alarm, suspense, desire, etc.

The act of one who, or that which, twitters.

A slight nervous excitement or agitation, such as is caused by desire, expectation, or suspense.

Present participle of twitter.

The act of producing chirping sounds, or twitters.