Black-throated Green Warbler (Setophaga virens)


Song: Song of two types: Unaccented Ending (zee-zee-zoo-zoo-zee) and Accented Ending (zee-zee-zee-zee-zoo-zee).



Black-throated Green Warbler accented and unaccented song, May 7, 2011. Kettle Moraine State Park, South Unit, Waukesha County, Wisconsin.