Range. - United States east of the Plains, breeding chiefly in the northern half of the Mississippi Valley, rare east of the Alleghanies and casual in New England. These beautiful Warblers are light blue gray above, streaked with black on back, white below, with a grayish blue band on breast and streaks on the sides; they have two wide white wing bars and spots on the outer tail feathers. They are found chiefly in the higher trees where they glean on the foliage; they build also usually above twenty feet from the ground in any kind of tree, placing the nests well out on the horizontal limbs, generally in a fork. The nests are made of fine strips of bark, fibres, rootlets, etc., lined with hair; the eggs are white or pale bluish white, specked with reddish brown; size .62 x .48. Data. - Fargo, Ontario, June 2, 1901. Nest in a burr oak, 18 feet from the ground on a horizontal limb.
Magnolia Warblers. Cerulean Warblers.