Fairly common in dense undergrowth in western North America, especially in mountainous regions. Rare winter vagrant to North Carolina with only a few records.
MacGillivray's Warbler (Geothlypis tolmiei) Flathead Co., MT 12 June 2014
MacGillivray's Warbler (Geothlypis tolmiei) Flathead Co., MT 12 June 2014