It is Donald Duck's birthday (his age is not revealed). He receives three presents. The first present is a film projector, which shows him a documentry on birds. The next present is a book given to Donald by Jose Carioca himself. This book takes them to Bahia. The third present is a piñata given to Donald by Panchito Pistoles. In the piñata, there are many surprises. The celebration ends with Donald Duck being fired away by firecrackers in the shape of a bull (the firecrackers are lit by Jose with his cigar).
Throughout the film, we see a voiceless character called the Aracuan Bird at random moments. He usually pesters everyone, sometimes stealing Jose's cigar. His most famous gag is when he re-routes the train by drawing new tracks. He returns three years in Disney's Melody Time.