Despite the perceptions that people may hold, owing to the long eyelashes and high-pitched voice (which Mel Blanc provided), Tweety is male although his ambiguity was played with. For example, in the cartoon "Snow Business", when Granny entered a room containing Tweety and Sylvester she said: "Here I am, boys!" Another confirmation that Tweety is male comes from the cartoon Greedy For Tweety in which during a hospital stay, Granny (portrayed as a nurse) utters "Oh the poor little Tweety bird, let's makes him a little more comfortable," as she adjusts his bed. Nonetheless, a 1952 cartoon was entitled Ain't She Tweet [emphasis added]. 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 of The Sylvester & Tweety Mysteries directly states that he is a canary. His shape more closely suggests that of a baby bird, which 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 Sylvester, even kicking the cat when he is down. One of his most notable[original research?] malicious moments is in the cartoon Birdy and the Beast, where 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's aggressive nature was toned down when Friz Freleng began directing the series, with the character more consistently played as a cutesy bird usually going about his business, and doing little to thwart Sylvester's ill-conceived plots, allowing them to simply collapse on their own; he became even less aggressive when Granny was introduced, but occasionally Tweety still showed a malicious side when egged on. Despite this, in comparison with other major Looney Tunes protagonists such as Bugs Bunny and Foghorn Leghorn, Tweety was not given a complete character arc, instead embodying the "innocent child" role offsetting the motives of his superior Sylvester and their guardian figure.
FREE SHIPPING IN THE UNITED STATES ONLY!!!!
RARE PLUSH DOLL FIGURE
NANCO LOONEY TUNES WARNER BROTHERS
2002 SCUBA GEAR WATER SPORTS 
TWEETY BIRD CANARY BIRD
CUTE CHARACTER NOVELTY TOY WEARING BLUE GOGGLES AND AN ORANGE LIFE VEST
READY FOR HOURS OF OUTDOOR WATER FUN!!!!!!
MEASURES APPROX.....16"
ALL NEW MATERIALS
SYNTHETIC FIBERS
Visit My eBay Store: KATHY'S BARGAIN SPECIALS
DAN