All a Bir-r-r-d

All a Bir-r-r-d is a Warner Bros. Looney Tunes cartoon released in 1950, featuring Tweety, Sylvester and an unnamed bulldog, who would later become known as Hector the Bulldog. It was written by Tedd Pierce and directed by Isadore "Friz" Freleng, with most voice characterizations courtesy of Mel Blanc (Bea Benaderet does a brief voice-over of Tweety's owner).