Many a spring passes without a glimpse of this beautiful little bird with its tawny cheek patch but one May a number of them invaded the hemlock grove north of our house. In the higher branches of these evergreens I saw at least ten of the males but no females. (The ladies may have been off somewhere attending a party of their own.) The grove rang with their persistent and penetrating variation of the Black and White Warblers' wiry vocal effort.
Eastern North America north to southern Mackenzie, northern Ontario, New Brunswick and Nova Scotia.