Wilson's Warbler (Cardellina pusilla)


Song: A rapid chatter, usually in 2 parts, with the second dropping in pitch.



Wilson's Warbler song, May 16, 2013. Milwaukee River Floodplain Forest State Natural Area, Washington County, Wisconsin.



Chip Call: A husky chimp, reminiscent of a winter wren call.



Wilson's Warbler chip call, May 16, 2013. Milwaukee River Floodplain Forest State Natural Area, Washington County, Wisconsin.