Chickens or Dickens

Simply decide whether these are chickens or characters from a Dickens novel.
An extra point if you know the novel.

  1. LEGHORN
  2. SILKIE
  3. PODSNAP
  4. DRUMMIE
  5. MARANS
  6. WELSUMMER
  7. WICKFIELD
  8. BARNVELDER
  9. CUTTLE
  10. CRUNCHER
  11. AUSTRALORP
  12. BAZZARD