"Duck! Rabbit, Duck!" is the conclusion of Chuck Jones' trilogy of hunting shorts with Elmer Fudd, Bugs Bunny, & Daffy Duck, released in 1953. It's set in the winter, unlike the first two parts of the trilogy, "Rabbit Fire" & "Rabbit Seasoning". Regardless of the season, Daffy is still gullible enough to fall for Bugs' tricks. Then again, so is Elmer.
This might explain why Daffy was later portrayed as being dumber than a bag of hammers around Bugs.