Answer: twittered

AnswerCrossword Clue
TWITTEREDSang like a bird
TWITTEREDSang like the birdies sing
twitteredTWITTER, to chirp (to utter a short, shrill sound)
twitteredTalk in a light, high-pitched voice
twitteredMake a posting on the social networking site Twitter
twitteredTalk rapidly and at length in an idle or trivial way
twittered(of a bird) Give a call consisting of repeated light tremulous sounds