Manuscript
Bibliography : Beinecke Rare Book & Manuscript Library, MS 189
| Willene B. Clark | The Illustrated Medieval Aviary and the Lay Brotherhood |
| Willene B. Clark | Medieval Book of Birds: Hugh of Fouilloy's Aviarium |
| Hugh Feiss; Ronald E. Pepin | Birds in Beinecke MS 189 |
| Barbara A. Shailor | Catalogue of Medieval and Renaissance Manuscripts in the Beinecke Rare Book and Manuscript Library, Yale University |
