The red tomcat is a Jimmy Durante-like character.
Tweety rides on the back of a classic Vaudeville style horse in a salute to the popular radio drama The Lone Ranger.
The "bayyy-whoop!" sound at the end was made by director Robert Clampett himself.
Tweety briefly morphs into popular entertainer Jimmy Durante at the very end of the short, and delivers one of the comic's signature lines.