The term 'Tiny Songbird' can be broken down into two crossword solutions: WREN (4 letters) and TIT (3 letters). WRENs are small, brown birds that are found in many parts of the world. They are known for their loud, melodic songs. TITs are also small birds, but they are usually brightly colored and have a distinctive crest on their heads. They are found mainly in Europe and Asia, and they are known for their cheerful chirps.