Bibliography : Ox
| Claudius Aelianus; A. F. Scholfield, trans. | On the Nature of Animals |
| Anne Clark | Beasts and Bawdy |
| Arthur H. Collins | Symbolism of Animals and Birds Represented in English Church Architecture |
| Ann Payne | Medieval Beasts |
| Beryl Rowland | Blind Beasts: Chaucer's Animal World |
| J. L. Schrader, ed. | A Medieval Bestiary |
