Canada Warbler in Ohio.

The Canada Warbler (Cardellina canadensis) is a small boreal songbird of the New World warbler family (Parulidae). It summers in Canada and northeastern United States and winters in northern South America.

Canada Warbler

The Canada Warbler is sometimes called the “necklaced warbler,” because of the band of dark streaks across its chest. The adults have minimal sexual dimorphism, although the male’s “necklace” is darker and more conspicuous and also has a longer tail. Adults are 4.7–5.9 inches long, and weighs 0.32–0.46 oz.

The chest, throat and belly of the bird is yellow, and its back is dark grey. It has no wingbars or tail spots, but the underside of the tail is white. It has a yellow line in front of its eye in the direction of the beak, but the most striking facial feature is the white eye-rings or “spectacles.” [Wikipedia]

Canada Warbler

Canada Warbler Facts [All About Birds]

• Not much is known about the mating system of the Canada Warbler, but it appears to be monogamous. The observation of male-female pairs in Panama during fall and spring migration suggests that the pair may stay together year round.
• The oldest recorded Canada Warbler was a male, and at least 8 years old when he was found in Quebec in 1982. He had been banded in the same province in 1975.