Manuscript
Bibliography : Bodleian Library, MS. Douce 151
| Ron Baxter | Bestiaries and their Users in the Middle Ages |
| Willene B. Clark | Medieval Book of Birds: Hugh of Fouilloy's Aviarium |
| Margaret Rickert | Painting in Britain: the Middle Ages |
| Brunsdon Yapp | A New Look at English Bestiaries |
