Possible Clues:

• Chatterboxes
• Heckle and Jeckle, e.g
• Birds that can recognize themselves in mirrors
• Nickname of Newcastle United
• Chattering birds
• Birds take issue with pastry dishes
• Epigrams composed right away for 22 having '18,4'?
• Birds with a raucous chattering call
• Black-and-white crows
• Jays' cousins