Species: One woodland-adapted sea-eagle (Haliaeetus albicilla).
Source: ‘Ymddiddan Arthur a’r Eryr’ (the Conversation between Arthur and the Eagle), a teaching text on Christian theology with an Arthurian frame story.
Date: Most probably original to the Jesus 20 manuscript: 1300-1350 A.D.
Highlights: Once Arthur found an eagle laughing at him. He was annoyed until he found out it was his dead nephew, Eliwlad. At that point he hinted he could make war on God if it would help…