Bibliography : Newberry Library, MS 31.1
| Willene B. Clark | Medieval Book of Birds: Hugh of Fouilloy's Aviarium |
| Samuel A. Ives; Hellmut Lehmann-Haupt | An English 13th Century Bestiary: A New Discovery in the Technique of Medieval Illumination |
| Max Friedrich Mann | Der Bestiaire Divin des Guillaume le Clerc |
| Florence McCulloch | Medieval Latin and French Bestiaries |
| Paul Saenger | A Catalogue of the Pre-1500 Western Manuscript Books at the Newberry Library |
| Friedrich Wilhelm, ed. | Münchener Texte |
