The Blue-gray Gnatcatchers (Polioptila caerulea) are small songbirds found in forests and shrublands in southern Ontario, the eastern and southwestern United States and Mexico. For the winter they migrate south to southern United States, Mexico, northern Central America-(Belize, Guatemala, and Honduras), Cuba, Bahamas, Turks and Caicos Islands, and the Cayman Islands.
These birds measure about 3.9 - 5.1 inches (10 - 13 cm). Males lare bluish-grey above and white below. They have blackish bar above the beak extending to the eyes (lacking in the female). Females have a less bluish plumage. Both males and females have white eye brows.