Greenback
Ad. in summer. - Upper parts black, spotted and margined with golden yellow; tail brownish gray, indistinctly barred with whitish; sides of the breast white; rest of the under parts, including sides of the head, black; under wing-coverts ashy. Winter plumage. - Upper parts and tail fuscous, spotted or barred with whitish or yellow; under parts whitish, more or less streaked or barred with brownish gray. L., 10.50; W., 7.00; Tar., 1.60; B., 90.