On the wall of the woodpecker's home is a framed 4-cent stamp commemorating famed bird artist John James Audubon.
The first appearance of Hector the Bulldog in the cartoon.
One of the few times Sylvester actually is heard meowing like a cat, if only for a moment.
The avian critter resembles the actual North American Red headed woodpecker.
Many of Sylvester's attempts at catching the pesky bird would be used by fellow WB castmate Coyote, in his endless pursuit of Roadrunner.