American Dipper, Cinclus Americanus, Aud. Orn. Biog. v. iv. p. 493; v. v. p. 303. GENUS II. ORPHEUS, Swains. MOCKING-BIRD. Bill of moderate length or longish, rather slender, straight or slightly arched, broader than high at the base, compressed toward the end, acute; upper mandible with the ridge rather narrow, the sides convex toward the end, the notches very slight, the tip narrow; lower mandible with the angle of moderate length, the dorsal line straight or slightly decurved toward the end, the sides nearly erect, the tip narrow. Nostrils oblong, partially concealed by the feathers. Head of ordinary size, ovato-oblong; neck of moderate length; body rather slender. Feet of ordinary length, slender; tarsus scarcely so long as the middle toe and claw; hind toe of moderate length, stout, lateral toes equal; claws moderate, arched, compressed, acute. Plumage soft and blended. Bristles rather long. Wings of ordinary length, broad, rounded, the first quill very small, the fourth and fifth longest. Tail very long, straight, much rounded, or graduated. 138. 1. Orpheus polyglottus, Linn. Grey Mocking-Bird. Plate XXI. Male and Female. Upper parts light grey tinged with yellowish-brown; feathers of the wings and tail greyish-black; primary coverts white, as are the primary quills in their proximal part; secondary coverts and first row of small coverts tipped with white; outer tail-feather white, as are the greater part of the next, and a portion of the third toward the end; lower parts greyish-white, on the breast tinged with brown, on the sides and under the tail with yellow. Female smaller, with the tints duller, and the white markings on the wings less extended. _Male_, 9-1/2, 13-1/2. _Female_, 9, 12-1/2. From Texas to Massachusetts. In the interior up the Mississippi and Ohio, to Henderson in Kentucky. Abundant and resident in the southern parts. Mocking Bird, Turdus polyglottus, Wils. Amer. Orn. v. ii. p. 14. Turdus polyglottus, Bonap. Syn. p. 74. Mocking Bird, Turdus polyglottus, Nutt. Man. v. i. p. 320. Mocking Bird, Turdus polyglottus, Aud. Orn. Biog. v. i. p. 108; v. v. p. 438. 139. 2. Orpheus montanus, Townsend. Mountain Mocking-Bird. Plate CCCLXIX. Fig. 1. Male. Upper parts greyish-brown; feathers of the wings and tail greyish-black; tips of secondary coverts, edges of primary quills, and a large spot at the end of the three lateral tail-feathers, white; lower parts whitish, marked with triangular dusky spots, of which there is a distinct line from the base of the bill; throat, middle of the breast, abdomen, and lower tail-coverts, unspotted. _Male_, 8; wing, 3-9/12. Rocky Mountains. Common. Migratory. Orpheus montanus, Mountain Mocking-Bird, Towns. Journ. Acad. Nat. Sc. Philadelphia, v. vii. p. 192. Mountain Mocking Bird, Turdus montanus, Aud. Orn. Biog. v. iv. p. 487.