Probably the most widespread sparrow, song sparrows commonly visit feeders and are responsive to pishing. In winter they may form small flocks, often with other sparrows, including the Lincoln’s, swamp, or zonotrichia. Polytypic. Length 5.8–7.5".
Distinctive long, rounded tail, often flipped in flight and when landing. Broad, grayish eyebrow; broad, dark malar stripe; whitish throat. Upperparts usually streaked. Underparts whitish; streaking on sides, breast, often converge in central spot. Pinkish legs, feet. Juvenile: buffier; fine streaking.
Depending on the taxonomy, 20 to more than 30 subspecies occur in the United States and Canada (with at least 4 more in Mexico). Extensive, marked variation in measurements, overall color, pattern. Identification to individual subspecies almost never possible in the field, but easy to recognize