Puny Express(1951)

Woody is a wandering cowboy who notices an ad at a western post office advertising for a new mail delivery rider. Woody accepts but is warned of mail thief Buzz Buzzard. Woody regards the buzzard as a pushover and begins his trek. Sure enough, Woody eventually encounters the buzzard who uses every trick possible to snatch the mail from Woody's hands spreading tacks across the road and dynamiting a bridge. But Woody is prepared for Buzz's antics...