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