Continuity mistake: When Elmer Fudd tells the fox to put up his hands and leave, the background behind Elmer changes between shots.
Continuity mistake: When Daffy Duck is sneaking up on the unconscious fox, you can see the fox's fingers on his left hand are pointing up. In the next shot, they are lying flat.
Continuity mistake: When Elmer Fudd says "My duck? You are so right!", you can see Elmer's back is covered in oil. But when Daffy Duck says, "Glad, do you hear?" we cut back to Elmer and the oil has disappeared.
Continuity mistake: When we see Daffy Duck hiding behind the tree at the start of the cartoon, you can see that behind him on the left there is nothing in the background, but when we see wiping the sweat off his face with a towel in the next shot, trees have suddenly appeared.