The film's writer Michael Maltese had quit working for Warner Bros. Cartoons before its completion. His name was removed from the credits.
Wile E. Coyote speaks out loud here, which he does not do when pursuing his other nemesis, the Roadrunner.
Bugs is shown entering his warren in some novel ways here. The whole short has a sense of fun to it, including Mel's characterization of the Genius Coyote.
Coyote is out of his usual desert habitat here, although it can be glimpsed in the background.