Catch as Cats Can is a 1947 animated cartoon featuring caricatures of Frank Sinatra and Bing Crosby as birds, and Sylvester the Cat, although he is without his signature lisp in this cartoon and has a dopey voice.
It was only one of three non-Bugs Bunny cartoons from 1947 not to be reissued. The others were Mexican Joyride and A Pest in the House.
An emaciated canary, singing like Frank Sinatra, is getting on the nerves of a pipe-puffing parrot, who speaks like Bing Crosby. The parrot spots Sylvester, foraging through the trash. Telling Sylvester he needs more vitamins (which the canary has been swallowing in bulk), he lures Sylvester inside to snare the canary. The straightforward approach fails (the canary bops him in the nose). He carves a female canary from soap, lures Frankie there; the birds slide down a greased counter, into the sink, and down the drain, but only the soap bird goes through the pipe and down Sylvester's throat. A trail of birdseed into the garage seems to work, but Frankie jacks Sylvester's mouth open. Sylvester laces the vitamins with buckshot; like all cartoon magnets, his attracts everything metal in sight except his prey. The canary turns Sylvester's vacuum cleaner against him, with a crash in the fireplace giving Sylvester a hot-stomach; as he buries his head in the sink, the bird adds Foamo-Seltzer to the water; Sylvester rockets off, crashing into a wall. Sylvester finally realizes the portly parrot is a better meal; we see him sitting on the parrot's perch, imitating his mannerisms.