Range. - Whole of North America, north to the limit of trees, breeding from the middle portions of the United States northward; winters south of our borders.

This dull-colored Swallow is grayish above and white below, with a gray band across the breast, they breed in holes in embankments, digging small tunnels from one to three feet in length, enlarged and lined at the end with grass and feathers. During May, June or July, according to latitude, they lay from four to six pure white eggs; size .70 x .50.

616 Bank Swallow Riparia Riparia 1232

615-616