In Assassin's Creed Origins, Bayek's eagle companion is named Senu.
Senu is a Bonelli's eagle who helps Bayek scout locations from above. Players can control Senu's flight to mark enemies, identify resources, locate objectives, and reveal parts of the surrounding landscape. This aerial viewpoint is a major exploration feature in Origins.
Senu is not a human Assassin or a member of the Hidden Ones. The eagle's scouting role reflects the game's emphasis on reconnaissance in ancient Egypt, where Bayek often investigates sites before entering them. Senu also gives Bayek a practical way to survey large areas without relying only on ground exploration.
A common mix-up is Ikaros, the eagle companion in Assassin's Creed Odyssey. Origins stars Bayek of Siwa, while Odyssey follows Kassandra or Alexios and uses Ikaros for a similar scouting function.