I love San Francisco and Muni and am thrilled to have my new ugly Christmas sweater emblazened with the Muni worm, cable cars, Coit Tower, the Pyramid Building, and the parrots declared the City's official animal by Total SF devotees and written about recently by Peter Hartlaub:  https://www.sfchronicle.com/totalsf/article/wild-parrots-transamerica-pyramid-19962695.php