BIRDS OF NORTH AND MIDDLE AMERICA. 



173 



114-131(123.2); wing, 70-77 (72.3); tail, 49-56 (52.3); exposed culnion, 

 10-11 (10.2); tarsus, 18-20 (18.9); middle toe, 11-12 (11.2).'' 



Adult female. — Similar to the adult male but duller in color, with 

 gray of head and neck browier and white of under parts less pure; 

 length (skins), 117-127 (121.7); wing, 70-75 (72.1); tail, 49.5-54 (52); 

 exposed culmen, t>-il (9.0); tarsus, 18-20 (19.1): middle toe. 11-12 



(11-2)." 



Yfnmg {injirxt autumn and winter). — Very different from the cor- 

 responding stage of L. .s. soUtariux. Pileum, hindneck and sides of 

 head and neck varying from olivaceous hair brown to grayish olive, 

 not very, if at all, different from color of back; orl)ital ring and 

 supraloral mark and white of under parts strongly tinged with brown- 

 ish ])uff. 



YoiDKj {jirst plumage). — Wings and tail as in adults; rest of upper 

 parts brownish gray; under parts entirely dull white, the flanks and 

 under tail-coverts faintly tinged with j^ellowish. 



Pacific coast district of the United States and British Columbia (both 

 sides of Cascade Range); breeding from Vancouver Island and eastern 

 side of Cascade Range in British Columbia (Clinton; Tobacco Plains) 

 southward to southern California (mountains of Los Angeles County) 

 and eastward to Idaho (Fort Sherman; Fort Lapwai), western Wyo- 

 ming (Fort Bridger) ?, and eastern Oregon (Fort Klamath); during 

 migration east to Utah (Wasatch Mountains), New Mexico (upper 

 Pecos River), etc., and southward through Arizona and western Mex- 

 ico to States of Jalisco (Talpa, San Sebastian), Morelos (Tetela del 

 Volcan), Guanajuato, and Oaxaca (Talea). 



« Nineteen specimens. 



& Nine specimens. 



Specimens from different localities average, respectively, as follows: 



