The Lone Chipmunks(1954)

In this Lone-Ranger spoof, a cleaned-up version of Pegleg Pete robs a western bank and makes his getaway, and decides to hide his loot in a tree inhabited by two chipmunks, the chattering-and-clattering Chip 'n' Dale. They resent the intrusion but really begin to give Pete a hard time when they discover a reward if posted for his capture. The cavalry arrives but Chip 'n' Dale have the situation well in hand.