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 question about Justic to get the needed sigil to cleanse the Shrine.

Trivia
A fan-patch gives Eustus a different set of questions to ask the Avatar.