Related Clues:
- They're inclined to brood at leaving Greek capital
- Barnyard cluckers
- Many serial killers
- They keep to themselves
- Birds kept for laying
- Coop crowd
- People who avoid social networking, maybe
- 'Cluck, cluck' makers
- Hardly partygoers
- Brooding ones
- Cacklers in coops
- Brooding sorts?
- Not exactly social butterflies
- Birds that brood
- Some "Chicken Run" extras