Brownish-olive above, somewhat more rufescent on wing; breast and head strongly washed with dilute rufous. Spots on breast narrow, scarcely darker than back. Wing, 3.85; tail, 3.00; culmen, .70; tarsus, 1.10. Hab. Pacific Province of United States. Guatemala … var. ustulatus.
C. Above olivaceous, becoming abruptly more reddish on upper tail-coverts and tail. Spots as in swainsoni, but larger and less transverse,—more sharply defined. An orbital ring of pale buff. Nest on ground; eggs blue, probably unspotted.
5. T. pallasi.
Olivaceous of upper parts like ustulatus. Reddish of upper tail-coverts invading lower part of rump; no marked difference in tint between the tail and its upper coverts. Flanks and tibiæ yellowish olive-brown; a faint tinge of buff across the breast. Eggs plain. Wing, 3.80; tail, 3.00; culmen, .70; tarsus, 1.20. Hab. Eastern Province of United States (only?) … var. pallasi.
Olivaceous of upper parts like swainsoni. Reddish of tail not invading the rump, and the tail decidedly more castaneous than the upper coverts. Beneath almost pure white; scarcely any buff tinge on breast; flanks and tibiæ grayish or plumbeous olive. Size smaller than swainsoni; bill depressed. Wing, 3.50; tail, 2.60; culmen, .60; tarsus, 1.15. Hab. Western Province of North America, from Kodiak to Cape St. Lucas. East to East Humboldt Mountains … var. nanus.
Olivaceous above, like preceding; the upper tail-coverts scarcely different from the back. Tail yellowish-rufous. Beneath like nanus. Size larger than swainsoni. Wing, 4.20; tail, 3.35; culmen, .80; tarsus, 1.30. Hab. Rocky Mountains. From Fort Bridger, south (in winter) to Southern Mexico … var. auduboni.
Turdus mustelinus, Gmelin.
THE WOOD THRUSH.
Turdus mustelinus, Gmelin, Syst. Nat. I, 1788, 817.—Audubon, Orn. Biog. I, 1832, 372, pl. 73.—Ib. Birds Am. III, 1841, 24, pl. 144.—D’Orb. La Sagra’s Cuba Ois. 1840, 49.—Baird, Birds N. Am. 1858, 212.—Ib. Rev. Am. Birds, 1864, 13.—Sclater, P. Z. S. 1856, 294, and 1859, 325.—Jones, Nat. in Bermuda, 26.—Gundlach,
Repertorio, 1865, 228.—Maynard.—Samuels, 146. Turdus melodus, Wils. Am. Orn. I, 1808, 35, pl. ii. Turdus densus, Bonap. Comptes Rendus, XXVIII, 1853, 2.—Ib. Notes Delattre, 1854, 26 (Tabasco).