An egret, frozen by the winter weather, moves into Pluto's doghouse. Pluto, cold and tired, takes a while to realize his doghouse is moving around without him. Even when he does realize, though, he has a hard time dislodging the interloper.
Sound
Pinto Colvig's vocal grunts deserve their own Oscar category.

Director
Jack Kinney
Trivia, insights & behind the scenes
Pinto Colvig voiced both Pluto and Goofy, so this is basically a one-man show of him arguing with himself.
Jack Kinney directed some of the most surreal Goofy shorts; this Pluto cartoon shows his love of escalating absurdity in miniature form.