Opus the Auk. Opus the Auk (Opus T. Auk) is a fictional character created by artist Berkeley Breathed. Breathed has described him as an "existentialist great auk" and the favorite of his many characters. Opus has appeared in several of Breathed's creations, most notably his 1980s comic strip Bloom County.
He is a Great Auk and a Great Auk is a Flightless Bird.