Related Clues:

• Fowl language?
• Grasshopper's noise
• Bird sound - and another made when capturing game?
• I settled in Chesterfield, a capital place
• High-pitched sound caught by one claiming humility
• After church, one bishop posted a tweet
• Version of Birdsong at a knock-down price, we're told
• Noise of a small bird
• Twitter? It's despicable by the sound of it
• Twitter, chirp repeatedly
• Young bird's chirp
• Fledgling's sound
• Greek character raised contented noise to sound cheerful
• Twitter, initially, could help idiots sound happy when upset
• Response initially outlined by token tweet