A hungry cat has the idea of giving "Jumbo Gro" fertilizer to a scrawny canary to make him a bigger meal, which leads to a race between the cat, the canary, a dog, and a mouse to see who can grow the biggest.
Unfortunately the movie King-Size Canary is not yet available on HBO Max.
| Sound | Scott Bradley | Music |
| Production | Fred Quimby | Producer |
| Directing | Tex Avery | Director |
| Writing | Heck Allen | Story |
| Production | William Hanna | Co-Producer |
