576 NORTH AMERICAN BIRDS. 



d l . Grayish brown above (more olivaceous in winter); flanks and 



thighs light grayish ; bill slenderer. 



e l . Smaller ; tail deep rufous, almost chestnut ; length 6.00-7.00, 

 wing 3.25-3.80 (3.57), tail 2.60-3.00 (2.76), culmen .4S-.52 

 (.50), tarsus 1.10-1.20 (1.12). Eggs .86 X -62. Hab. Pa- 

 cific coast, breeding from mountains of California north 

 to Kadiak ; south, in winter, to Lower California and 

 western Mexico, as far as Colima ; during migrations, east 

 to Nevada and Arizona. 



759. T. aonalaschkae GMEL. Dwarf Thrush. 

 e 2 . Larger ; tail dull ochraceous-rufous, or fulvous ; colors in 

 general rather grayer; length 7.50-8.25, wing 3.65-4.35 

 (4.08), tail 2.95-3.45 (3.27), culmen .53-.60 (.57), tarsus 

 1.12-1.28 (1.18). Eggs .86 X -64. Hab. Eocky Mountains, 

 from northern border of United States south to highlands 



of Mexico and Guatemala 759#. T. aonalaschkse 



auduboni (BAIRD). Audubon's Hermit Thrush. 



d*. Above dull brown, deeper, or more " smoky," in winter ; flanks 

 and thighs olive-brownish ; bill stouter. 



Tail and its upper coverts decidedly rufescent (averaging 

 about intermediate in tint between that of T. aonalaschkce 

 and T. auduboni) ; length 6.50-7.65, wing 3.40-3.90 (3.64), 

 tail 2.55-3.15 (2.88), culmen .50-.60 (.59), tarsus 1.15-1.30 

 (1.19). Eggs .88 X -66. Hab. Eastern North America, 

 breeding from northern United States northward, and 

 wintering from about 40 to Gulf coast. 



7596. T. aonalaschkse pallasii (CAB.). Hermit Thrush. 



a?. Wing more than four and a half times as long as tarsus. (Subgenus Turdus 

 LINN.) 



Adult : Above plain brownish ; a superciliary stripe and a malar stripe 

 (widening beneath and behind ear-coverts into somewhat of a patch), 

 white ; lower parts white medially, the under wing-coverts, sides, and 

 flanks plain rufous ; breast streaked with dusky. Young : Upper parts, 

 including wing-coverts, streaked and barred with bufly or whitish ; 

 lower parts more extensively spotted or streaked. Length about 8.00- 

 9.0Q, wing 4.45-4.85, tail 3.00-3.45, culmen .78-.S6, tarsus 1.15-1.25. Nest 

 usually in bushes or small trees, bulky, composed of mosses, dried 

 grasses, etc. Eggs 1.01 X -76, pale dull bluish, pale greenish blue, or 

 pale olive-greenish, freckled with reddish brown. Hab. Northern por- 

 tion of Europe and Asia ; accidental in Greenland. 



760. T. iliacus LINN. Red-winged Thrush. 



