Species and Varieties.
A. Lower parts streaked.
1. M. melodia. White of the lower parts uninterrupted from the chin to the crissum; the streaks of the jugulum, etc., broad and cuneate.
a. Streaks, above and below, sharply defined, and distinctly black medially (except sometimes in winter plumage).
Ground-color above reddish-gray, the interscapulars with the whitish and black streaks about equal, and sharply contrasted. Rump with reddish streaks. Wing, 2.70; tail, 2.90; bill .36 from nostril, and .30 deep. Hab. Eastern Province of United States, to the Plains on the west, and the Rio Grande on the south … var. melodia.[2]
Ground-color above ashy-gray, the interscapulars with the black streaks much broader than their rufous border, and the whitish edges not in strong contrast. Rump without streaks. Wing, 2.80; tail, 3.15; bill, .33 and .22. Hab. Middle Province of United States … var. fallax.[3]
Ground-color above nearly pure gray, the interscapulars with the black streaks much broader than the rufous, and the edges of the feathers not appreciably paler. Rump without streaks. Wing, 2.80; tail, 2.85; bill, .32 by .27. Hab. California, except along the coast; Sierra Nevada … var. heermanni.[4]
Ground-color above grayish-olive, the interscapulars with the black streaks much broader than their rufous border; edges of the feathers scarcely appreciably paler. Rump and tail-coverts, above and below, with distinct broad streaks of black. Wing, 2.40; tail, 2.50; bill, .37 and .24. Hab. Coast region of California … var. samuelis.[5]
Ground-color above olive-rufous, the edges of the interscapulars, alone, ashy; dorsal black streaks very broad, without rufous border. Rump streaked with black. Wing, 2.60; tail, 2.85; bill, .34 and .25. Hab. Puebla, Mexico … var. mexicana.[6]
b. Streaks, above and below, not sharply defined, and without black medially.