Eustus the Vulture

Eustus the Vulture appears in Ultima IX, guarding the sigil of Justice. As the name says, he is a big Vulture. The Avatar met him on the highest mountain in Britannia, where he had to answer the questions about what Justice is correctly to get the needed sigil to cleanse the Shrine.

Trivia
Eustus' questions are actually totally stupid, and have very little to do with Justice. Thankfully the fan-patch gives Eustus more interesting questions to ask the Avatar.