The Canada warbler is a small boreal songbird of the New World warbler family. It summers in Canada and northeastern United States and winters in northern South America.
Wilson's warbler is a small New World warbler. It is greenish above and yellow below, with rounded wings and a long, slim tail. The male has a black crown patch; depending on the subspecies, that mark
Canada warbler
…the parulids has long been considered "idiosyncratic", singing by female Canada warblers is supported by the observation of female singing in congener Wilson's warbler and the closely related hooded warbler. During the breeding season 82% of the population can be found in Canada and 18% in the United States. In Canada…