Bibliography : Ox
| Anne Clark | Beasts and Bawdy |
| Arthur H. Collins | Symbolism of Animals and Birds Represented in English Church Architecture |
| Guy R. Mermier | The Romanian Bestiary: An English Translation and Commentary on the Ancient "Physiologus" Tradition |
| Ann Payne | Medieval Beasts |
| Beryl Rowland | Blind Beasts: Chaucer's Animal World |
| J. L. Schrader, ed. | A Medieval Bestiary |