Song: Song is somewhat variable but always loud and musical. "monte-monte-viDEo" with emphasis on "DE", "a-weeta-weeta-weet-tee-o". Pattern is similar to some songs of Magnolia Warbler, which has a much weaker, less musical tone. Confusion is also possible with Chestnut-sided Warbler which lacks the two-syllabled beginning ("monte-monte") and is also less musical.
Sound: Jean Dubois/Chris Daboll (Bird Sounds of Canada); 1979 May 8; Canada, Ontario; Point Pelee; Adult; Primary Sound;