THE SIERRA HERMIT THRUSH. 237 



from Cross Sound ; southward in winter as far as Texas and western Mexico, 

 migrating chiefly coastwise. 



Range in Washington. — Spring and fall migrant west of the Cascades. 



Migrations. — Spriiuj: Tacoma, April 15, 1905 (J. H. ISuwles). /•'fl//; Seattle 

 Sept. 21, 1907 (Jennie V. Getty). 



Authorities. — Bowles and Dawson, Auk, XX\'. Oct. 1908, p. 48,^. 



Specimens. — P( Alaskan). Prov. 11. 



.MjOL'T all we can certify to, so far, is that there are twi) varieties of the 

 Hermit Thrush which may be seen on Puget Sound during the migrations : a 

 lighter and grayer form, presumably from northwestern Alaska ; and a darker, 

 more warmly-tinted bird, H. g. nana, which may or may not summer to some 

 extent in western Washington. Specimens so far encountered in eastern 

 W'ashington are pnjbably //. g. seqiioieusis, en route to or from their breeding- 

 haunts in the high Cascades; while if any are ever captured in the mountains 

 of Stevens County, they will probably prove to be of the H. g. aiiduhoni tvpe, 

 which prevails in the eastern portion of British Columbia. 



No. q6. 



SIERRA HP:RMIT THRUSH. 



A. O. U. Xo. 759 part. Hylocichia guttata sequoiensis (Lidding). 



Synonyms. — Western Hi-rmii' Thiu'sh. Cascade IlER.NtiT TiiKfsir. 

 MoiNTAiN Hermit. 



Description. — Similar in coloration to H. guttata but larger, paler and grayer. 

 .Adult male: wing 3.65 (92.8) ; tail 2.83 I71.8) ; bill .53 (13.5) ; tarsus 1.12 (28.4). 



Recognition Marks. — .\s in H. guttata. 



Nesting. — Scst: of bark-strips, grasses, leaves and moss, lined with tine 

 rootlets, placed on ground in thickets or at moderate heights in lir trees. Eggs: 

 3 or 4, greenish blue unmarked — not certainly distinguishable from those of the 

 Willow Thrush. .\v. size, .85 x .65 ( 21.6 .\ 16.5). Season: June, Jul}': <inc 

 brood. 



General Range. — Mountains of the Cascade-Sierra system and from Mt. 

 W'hitncv north thru central ISritish Columbia, etc., to the Yukon River; south in 

 winter to l^owcr California, Sonora, etc. 



Range in Washington. — Common .summer resident in the Cascade Moun- 

 tains — further distinction undetermined. 



Authorities. — Dawson, .\uk, \'ol. XX\'. Oct. 1908, p. 483. 



Specimens. — D. 



