Tweety (Tweety Bird) is an Animated fictional yellow canary in the Warner Bros. Looney Tunes and Merrie Melodies series of animated cartoons. The name "Tweety" is a play on words, as it originally meant "sweetie", along with "tweet" being a typical English onomatopoeia for the sounds of birds. His characteristics are based on Red Skelton's famous "Mean Widdle Kid." Tweety appeared in 47 cartoons in the golden age. Despite the perceptions that people may hold, owing to the long lashes and high pitched voice of Tweety, Tweety is male. This is established several times in the animated series The Sylvester & Tweety Mysteries, and in the film-short Bad Ol' Putty Tat when Sylvester tries to trick Tweety using a fake female bird. On the other hand, a 1951 cartoon was entitled "Ain't She Tweet." Also, his species is ambiguous; although originally and often portrayed as a young canary, he is also frequently called a rare and valuable "tweety bird" as a plot device, and once called "the only living specimen". Nevertheless, the title song directly states that the bird is a canary. His shape more closely suggests that of a baby bird, which in fact is what he was during his early appearances (although the "baby bird" aspect has been used in a few later cartoons as a plot device). The yellow feathers were added but otherwise he retained the baby-bird shape. In his early appearances in Bob Clampett cartoons, Tweety is a very aggressive character who tries anything to foil his foe, even kicking his enemy when he is down. One of his most notable malicious moments is in the cartoon Birdy and the Beast. A cat chases Tweety by flying until he remembers that cats cannot fly, causing him to fall. Tweety says sympathetically, "Awww, the poor kitty cat! He faw down and go (in a loud, tough, masculine voice) BOOM!!" and then grins mischievously. A similar use of that voice is in A Tale Of Two Kitties when Tweety, wearing an air raid warden's helmet, suddenly yells, "Turn out those lights!" Tweety was toned down when Friz Freleng started directing the series into a more cutesy bird, and even more when Granny was introduced, but occasionally Tweety still showed his malicious side.